ASI183MC Pro

Introducing the ASI183 camera series, the most sensitive cameras in ZWO history. Peak Q.E. of the mono sensor reaches 84%!

DDR Memory Buffer

The ASI183 Pro camera includes a 256MB DDR3 memory buffer to help improve data transfer reliability. Additionally, the use of a memory buffer minimizes amp-glow, which is caused by the slow transfer speeds when the camera is used with a USB 2.0 port.

Astrophotography Performance

The ASI183 cameras has a very large full well capacity（15000e） for such small pixel size, 1.6e read noise @ 30DB, and 12stops dynamic range @ Gain=0. The ASI183 cameras also utilize firmware features to minimize amplifier glow for maximum performance in astrophotography.

Reliable Mechanics

ASI183 Pro has same mechanics as ASI1600 Pro. There are four screws that seal the sensor chamber. Our camera design has been extensively tested and is very stable.

Even when used in higher humidity environments, ASI183 Pro will still work fine without dew problems.

High Speed

Fast FPS can be used in solar and lunar imaging, as well as for live viewing/EAA.The high speed readout may also be used for real-time focusing, true lucky imaging of double stars and other small objects, planetary imaging of the major planets in the solar system, and much more.

10Bit ADC
5496×3672 19fps
3840×2160 41.04fps
1920×1080 80.10fps
1280×720 117.30fps
12bit ADC
5496×3672 19fps
3840×2160 36.12fps
1920×1080 70.48fps
1280×720 103.23fps

High QE

Sony’s back-illuminated Exmor R technology, giving it excellent Deep Sky performance. ASI183 QE peak reaches a remarkable 84%. In Ha channel, QE is still over 60%.

Having high QE means more of the light that enters your telescope and reaches the sensor is actually used. With 84% peak Q.E. and no less than ~50% within the visible spectrum, the ASI183 will utilize a high percentage of the light that reaches it, improving your signal quality.

Dark Current

The dark current of the ASI183 is extremely low, based on our test results.

USB 3.0 Port & USB2.0 HUB

USB 3.0 Port: Provide 5Gb bandwidth to make it possible for ASI183 Pro to run at 19 fps (12bit, normal mode) or 19 fps (10bit, high speed mode) at full resolution(20.18Mega).

Recommended cooler power supply: 12V @ 3-5A (or more) DC adapter (2.1×5.5mm, center pole positive). Also suitable: DC battery with 9-15V.

Using a battery with 9-15V is also suitable for the cooler power supply.

USB 2.0 HUB: can connect with various accessories, such as filter wheel, guide camera and electronic focuser, so you can better manage your cables. The ASI183 Pro includes two short 0.5m USB 2.0 cables. The integrated USB 2.0 hub is powered by the external power source if you connect one.

Cooling System

The ASI183 Pro has a 2-stage TEC cooling system that enables deep cooling (40°C-45°C below ambient). The cooler requires an external power supply, which is not included with the camera.

Connecting Drawing

1. M43-T2 adapter

2. EOS-T2 adapter

3. 2”Filter (optional)

4. 1.25” T-Mount

5. 1.25” Filter (optional)

6. M42-1.25” adapter (optional)

7. T2 extender 11mm

Mechanical Drawing

What is in the box?

ASI183 Pro box includes all necessary cables, adapters, and manuals.

Camera Specifications

Cooling & Power

Environmental Conditions

Max FPS at Full Resolution (10-bit ADC)

Max FPS at Full Resolution (12-bit ADC)

ASI183MM Pro

Introducing the ASI183 camera series, the most sensitive cameras in ZWO history. Peak Q.E. of the mono sensor reaches 84%!

Using the Sony IMX183CLK-J Mono Sensor with high resolution 2.4 μm pixels, it includes a 256MB DDR3 memory buffer.

 ASI183 QE peak reaches a remarkable 84%. In Ha channel, QE is still over 60%.

DDR Memory Buffer

The ASI183 Pro camera includes a 256MB DDR3 memory buffer to help improve data transfer reliability. Additionally, the use of a memory buffer minimizes amp-glow, which is caused by the slow transfer speeds when the camera is used with a USB 2.0 port.

DDR memory buffer is the main difference between ASI “Cool” and “Pro” cameras.

Astrophotography Performance

The ASI183 cameras has a very large full well capacity（15000e） for such small pixel size, 1.6e read noise @ 30DB, and 12stops dynamic range @ Gain=0. The ASI183 cameras also utilize firmware features to minimize amplifier glow for maximum performance in astrophotography.

Reliable Mechanics

ASI183 Pro has same mechanics as ASI1600 Pro. There are four screws that seal the sensor chamber. Our camera design has been extensively tested and is very stable.

Even when used in higher humidity environments, ASI183 Pro will still work fine without dew problems.

High Speed

Fast FPS can be used in solar and lunar imaging, as well as for live viewing/EAA.The high speed readout may also be used for real-time focusing, true lucky imaging of double stars and other small objects, planetary imaging of the major planets in the solar system, and much more.

10Bit ADC
5496×3672 19fps
3840×2160 41.04fps
1920×1080 80.10fps
1280×720 117.30fps
12bit ADC
5496×3672 19fps
3840×2160 36.12fps
1920×1080 70.48fps
1280×720 103.23fps

High QE

Sony’s back-illuminated Exmor R technology, giving it excellent Deep Sky performance. ASI183 QE peak reaches a remarkable 84%. In Ha channel, QE is still over 60%.

Having high QE means more of the light that enters your telescope and reaches the sensor is actually used. With 84% peak Q.E. and no less than ~50% within the visible spectrum, the ASI183 will utilize a high percentage of the light that reaches it, improving your signal quality.

Dark Current

The dark current of the ASI183 is extremely low, based on our test results.

USB 3.0 Port & USB2.0 HUB

USB 3.0 Port: Provide 5Gb bandwidth to make it possible for ASI183 Pro to run at 19 fps (12bit, normal mode) or 19 fps (10bit, high speed mode) at full resolution(20.18Mega).

Recommended cooler power supply: 12V @ 3-5A (or more) DC adapter (2.1×5.5mm, center pole positive). Also suitable: DC battery with 9-15V.

Using a battery with 9-15V is also suitable for the cooler power supply.

USB 2.0 HUB: can connect with various accessories, such as filter wheel, guide camera and electronic focuser, so you can better manage your cables. The ASI183 Pro includes two short 0.5m USB 2.0 cables. The integrated USB 2.0 hub is powered by the external power source if you connect one.

Cooling System

The ASI183 Pro has a 2-stage TEC cooling system that enables deep cooling (40°C-45°C below ambient). The cooler requires an external power supply, which is not included with the camera.

Connecting Drawing

1. M43-T2 adapter

2. EOS-T2 adapter

3. 2”Filter (optional)

4. 1.25” T-Mount

5. 1.25” Filter (optional)

6. M42-1.25” Filter (optional)

7. T2 extender 11mm

8. M42-M48 extender 16.5mm

9. T2-T2 adapter

10. EFW mini

11. EOS adapter for EFW

Mechanical Drawing

What is in the box?

ASI183 Pro box includes all necessary cables, adapters, and manuals.

Camera Technical Details

Cooling & Power

Environmental Conditions

Max FPS at Full Resolution (10-bit ADC)

Max FPS at Full Resolution (12-bit ADC)

ZWO ASI533MC-Pro

ASI 533MC-P is the new One Shot Colour cameras from ZWO.

Sensor is the square back illuminated Sony ExMor IMX533 sensor.

Resolution is 3008 x 3008 with 3.76um pixels.

The sensor size is 11.31mm x 11.31mm for 9.07Mp.

Max FPS at Full Resolution is 20FPS.

Read Noise is very low at 1.0e to 3.83e

QE peak up to 80%

Full Well is 50Ke

Exposure Range is 32us – 2000s

ADC 14bit

Cooling to -40 ° ambient temperature.

256MB internal DDR3 memory

The ASI533MC PRO features SONY’s latest back illuminated IMX533 sensor, with a 1-inch square, 9.07MP sensor that is ideal for astronomical photography needs and can be considered as the latest iteration of the venerable ASI183MC Pro.

As you would expect this latest generation camera not only retains key features of the ASI183 series such as an attractive QE figure, high frame rate and along with other excellent characteristics of the ASI183 cameras, but also now includes new and improved features such as zero amp glow, extreme low read out noise (as low as 1.0e), 3.76 microns pixel size and an improved 2 stage TEC cooler giving enhanced cooling capabilities.

1” square sensor

The IMX533 is a 1-inch, 9MP CMOS image sensor in a square format with a 3.76 um pixel size, capable of producing frames at 20 frames/sec in 14bit mode.

Read out noise is as low as 1.0e which makes it comparable to SCMOS or EMCCD sensors and highly suitable for high definition, low noise imaging.

IMX533 backlit sensor

Sony’s back-illuminated CMOS image sensor improves sensitivity and noise reduction – the key factors to enhancing image quality, while radically realigning their fundamental pixel structure from front-illumination to back-illumination. It has retained the advantages of CMOS image sensors such as low power consumption and high-speed operation.

With a conventional front-illumination structure, the metal wiring and transistors on the surface of the silicon substrate that form the sensor’s light-sensitive area (photo-diode) impede photon gathering carried out by the on-chip lens. A back-illuminated structure minimizes the degradation of sensitivity to optical angle response, while also increasing the amount of light that enters each pixel due to the lack of obstacles such as metal wiring and transistors that have been moved to the reverse of the silicon substrate.
Sony has newly developed a unique photo-diode structure and on-chip lens optimized for back-illuminated structures, that achieves a higher sensitivity and a lower random noise without light by reducing noise, dark current and defect pixels compared to the conventional front-illuminated structure.

Camera Performance

Low read-out noise, high dynamic range.

ASI533MC Pro – ASI183MC Pro Comparision

The ZWO ASI533MM PRO adopts a Sony back-illuminated IMX533 sensor, which is a 1-inch square frame sensor made suitable for deep sky astrophotography needs. The ZWO ASI533MM Pro can be regarded as an upgrade of the ASI183 series. Not only does it retain the high-quality features of the ASI183, such as high QE and frame rate, but it also features: no amp glow, readout noise as low as 1.0e, pixel size of 3.76 μm, 3008 x3008 array (11.31mm x 11.31mm) array and a 2-stage TEC cooling. It is highly recommended for beginners of deep sky astrophotography.

1-inch Square Frame
The IMX533 is a 1-inch square frame CMOS image sensor with approximately 9M effective pixels at a pixel size of 3.76 μm. The 14-bit digital output of IMX533 makes it possible to read out signals of 9m effective pixels at a high speed of 20 frames per second with read noise as low as 1.0e, the performance of which is on par with those of SCMOS or EMCCD sensors. This sensor is suitable for image needs that require high definition and low noise.

Full Upgrade
The ZWO ASI533MM Pro is considered a full upgrade version of the ASI183 series.

Camera Curve

Quantum Efficiency

Based on ZWO’s calculation, the peak quantum efficiency of ASI533MM Pro is greater than 91%.

Zero Amp Glow

Traditional CMOS sensors can generate weak infrared light, which is equivalent to a light source during exposures. The ASI533MM Pro uses a no-glow circuitry to ensure best quality images regardless of gain or exposure length.

2 Stage TEC Cooling
The 2-stage thermoelectric can cool the CMOS sensor to 35 degrees below the ambient temperature (based on a 30 degree ambient temperature test results). Greatly reducing dark current and thereby improving the signal to noise ratio, even with a long expose of hundreds of seconds. Note: the lower the ambient temperature is, the smaller the Delta T is.

Dark Current

USB 3.0 & 256M DDR3 Memory
ASI533MM Pro is equipped with a USB 3.0 transmission interface. In 14-bit ADC mode, the output frame rate can reach 20 frames per second. Additionally, the 256M DDR3 memory ensures a more stable data transmission during long exposure without frame loss, and can also relax the hardware requirements of the computer used for data capture.

Appreciation Work

Connection Method

Connection to External Device

Structural Dimension Diagram

Specifications

Product Description

ASI294MC Pro

The ASI294 is the first camera in the world equipped with the latest Sony sensor IMX294CJK.

DDR Memory Buffer

The ASI294MC Pro camera includes a 256MB DDR3 memory buffer to help improve data transfer reliability. Additionally, the use of a memory buffer minimizes amp-glow, which is caused by the slow transfer speeds when the camera is used with a USB 2.0 port.

DDR memory buffer is the main difference between ASI “Cool” and “Pro” cameras.

14bit ADC w/ 13 stops DR

The ASI294 has a 14bit ADC unit, allowing it to achieve 13 stops of dynamic range. This is an excellent characteristic for deep sky imaging, which is inherently high dynamic range. At 13 stops, the ASI294 has even more dynamic range than the ASI1600.

HCG Mode

HCG (high conversion gain) mode, which reduces read noise to even lower levels at higher gain without loss to dynamic range, is automatically enabled when the gain setting is 120 or higher. Read noise will drop under 2e-, while dynamic range will remain at 13 stops.

Full well Capacity

63700e full well, which is 3 times than ASI1600’s capacity. Even bright stars won’t saturate under long exposure.

This camera can achieve higher SNR(signal to noise ratio) with just one single exposure.

Reliable Mechanics

ASI294MC Pro has same mechanics as ASI1600 Pro. There are four screws that seal the sensor chamber. Our camera design has been extensively tested and is very stable.

Even when used in higher humidity environments, ASI294MC Pro will still work fine without dew problems.

High QE

The IMX294 sensor is a BSI (backside illuminated type) sensor, which has very high QE (quantum efficiency, which we estimate is over 75% peak).

Dark Current

The dark current of the ASI294 is slightly higher than the ASI1600, based on our test results.

Dark frame sample @ Highest dynamic range settings, 300s, -10°C, bin1. Please check the dark frame to make sure you fully know the performance.

ASI294MC Pro Dark Frame

USB 3.0 Port & USB2.0 HUB

USB 3.0 Port: Provide 5Gb bandwidth to make it possible for ASI294 Pro to run at 16 fps (14bit, normal mode) or 19 fps (10bit, high speed mode) at full resolution(11.7Mega).

Recommended cooler power supply: 12V @ 3-5A (or more) DC adapter (2.1×5.5mm, center pole positive). Also suitable: DC battery with 9-15V. Buy the power supply from Bintel too!

Using a battery 9-15V is also suitable for the cooler power supply.

USB 2.0 HUB: can connect with various accessories, such as filter wheel, guide camera and electronic focuser, so you can better manage your cables. The ASI294 Pro includes two short 0.5m USB 2.0 cables. The integrated USB 2.0 hub is powered by the external power source if you connect one.

Cooling System

The ASI294 Pro has a 2-stage TEC cooling system that enables deep cooling (35°C-40°C below ambient). The cooler requires an external power supply, which is not included with the camera. You may order a suitable power supply from Bintel here.

Connecting Drawing

1. M43-T2 adapter (optional)

2. EOS-T2 adapter (optional)

3. 2” Filter (optional)

4. 1.25” T-Mount

5. 1.25” Filter (optional)

6. M42-1.25” adapter

7. T2 extender 11mm

Mechanical Drawing

What is in the box?

ASI294 Pro box includes all necessary cables, adapters, and manuals.

Notice：Cooled cameras need a 12v power adapter, If you don’t have one, please click this link to buy a 12V power adapter. There are 4 different standards for the different country, please choose it carefully.

Drivers and Softwares:

The ZWO website is always updated with the most recent camera drivers as well as software for DSO and planetary imaging. Please make sure the most recent drivers and software from the ZWO website has been installed before you start shooting:

It is also recommended to read the manuals first before shooting.

Product review:

https://www.cloudynights.com/topic/591441-asi-new-camera-294-pro-beta-testing/page-11#entry8165708

Camera Technical Details

Cooling & Power

Environmental Conditions

Max FPS at Full Resolution

Additional resolutions are available in software and support custom resolution selection.

Product Description

ASI294MM-P is a back-illuminated, 4/3” format, 14-bit ADC camera with 4.63um pixels *(. It is the mono version of ASI294MC Pro, one of the top selling cameras from ZWO. It has an impressive 66ke- full well capacity and 4144*2822 big resolution.

Not only does it have a very high QE value with a peak at about 90%, but feature an ultra-low readout noise of 1.2e. If you are seeking for a small-format mono camera for astrophotography, then ASI294MM-P gonna be your ideal choice.

14-bit ADC and 13stops dynamic range

ASI294MM Pro has very similar parameters as its color version. Both have the 14bit ADC and a high dynamic range of 13 stops, which is even higher than that of ASI1600MM Pro camera.

Unlocked Bin1 Mode

Yet another perk of the ASI294MM Pro is that the pixel size is switchable – the default setting is Bin2, but you can switch to Bin1 anytime in your astrophotography software. This changes the pixel size into 2.3um and increases resolution to 8288×5644. This is what we called “Unlocked Bin1 Mode”. The ability to unlock bin1-mode was a popular request from our customers. Of course we listened to you and worked quickly to make it possible.

Remember that using Bin1-mode will decrease the full well capacity compared to the standard bin2-mode.

Unlocked Bin1: 12bit ADC, 2.3um pixel size, 47 megapixels, 8288*5644 resolution, 14k full well capacity.
Bin2: 14bit ADC, 4.6um pixel size, 11.7 megapixels, 4144*2822 resolution, 66k full well capacity.

Backlit Sensor

The back-illuminated CMOS sensor improves sensitivity and noise reduction – the key factors to enhancing image quality, while radically realigning their fundamental pixel structure from front-illumination to back-illumination. It has retained the advantages of CMOS image sensors such as low power consumption and high-speed operation.

With a conventional front-illumination structure, the metal wiring and transistors on the surface of the silicon substrate that form the sensor’s light-sensitive area (photo-diode) impede photon gathering carried out by the on-chip lens. A back-illuminated structure minimizes the degradation of sensitivity to optical angle response, while also increasing the amount of light that enters each pixel due to the lack of obstacles such as metal wiring and transistors that have been moved to the reverse of the silicon substrate.

Camera Performance

Large well depth capacity, low read-out noise and high dynamic range.

The full well capacity of 66387e of ASI294MM Pro is near the top of all ASI DSO cameras. It ensures a very high dynamic range up to 13stops that will greatly reduce overexposure probability and help gain richer color gradation.

When the gain value is 120, the magical HCG high gain mode is turned on, the readout noise will be largely decreased (as low as 1.2e), and the dynamic range is basically unchanged.

Reliable Mechanics

There are four screws on the camera that seal the sensor chamber. This kind of design has been extensively tested and is very stable. Even when used in higher humidity environments, ASI294MM Pro will still work fine without dew problems.

The anti-dew heater power is around 5W and can be turn off in software to save power.

QE Value

As ZWO’s latest BSI (backside illuminated type) mono camera, ASI294MM Pro has very high QE performance, not only higher than its color version, but even ASI1600MM Pro. It is estimated that the QE peak value is about 90%.

ASI294MM-P vs ASI1600MM Pro

Two-Stage TEC Cooling: Ultra-Low Dark Current

ASI294MM Pro uses two stage TEC cooling that can lower the CMOS sensor temperature to 35c~40c below ambient, which can greatly reduce dark current generation and sensor noise even with extended exposure times.

The unique dark current suppression technology can even further reduce dark current noise. When it’s cooled to -20℃, the current noise can be as low as 0.0022e/s/pix, which is completely negligible!

Please notice that the camera needs to be connected to an external 12v power supply to implement the cooling function. We recommend you use 12V@3A DC adapter (5.5*2.1mm, center pole positive) or lithium battery with 11-15V to power the camera.

USB3.0 & 256M DDR3 Memory

The ASI294MM Pro is equipped with a USB 3.0 transmission interface and a built-in 256MB(2Gb) DDR3 cache to ensure stable and secure data transmission. Under long exposure, it effectively avoids frame dropping and greatly reduces the glow effect caused by slow reading speed.

Notice: For the possible amp glow that shows on your images, please refer to this tutorial: “What is Amp-glow and how do I manage it? “

https://astronomy-imaging-camera.com/faq

Mechanical Diagram

What’s in the box?

The best solution of 55mm back focus length

Full-Frame Products Comparison

The ASI4400MC Pro is the latest addition to ZWO’s full-frame deep-sky camera lineup.
Positioned between the ASI6200MC Pro and the ASI2400MC Pro, the ASI4400MC Pro strikes the perfect balance between image quality and efficiency, giving users a versatile option within the full-frame lineup.

Comparison Table:

Full-Frame for a wider field of view

The ASI4400MC Pro uses a full-frame, back-illuminated sensor measuring 36 × 24 mm with a 43.3 mm diagonal. With 44 megapixels and 4.4 μm pixels, it delivers incredible resolution and light sensitivity in every shot. The full-frame format lets you capture the entire field your optics can deliver - no cropping, no lost edges - perfect for wide-field targets and large deep-sky objects. Each pixel supports a full-well capacity of 74,600 electrons, providing exceptional dynamic range. Bright stars retain their natural color and detail, while faint nebula structures and galaxy arms remain beautifully visible. The result is cleaner, more balanced images with outstanding tonal depth across the frame.

High Dynamic Range, Capturing Both Highlights and Faintest Details

The ASI4400MC Pro features a 14-bit analog-to-digital converter (ADC) that delivers a dynamic range of over 13 stops. This wide range allows a single exposure to capture both bright highlights and faint shadow details without clipping. Whether you’re imaging bright stars, nebula cores, or the delicate wisps of distant galaxies, more tonal information is preserved for smoother gradients and richer color depth. The result is a natural, well-balanced image straight out of the camera, with plenty of flexibility for post-processing and fine-tuning.

Efficient Cooling, Protecting Image Quality

The ASI4400MC Pro uses a powerful two-stage TEC cooling system capable of lowering the CMOS sensor temperature by 30°C to 35°C below ambient. This deep cooling dramatically reduces dark current and thermal noise, keeping your images clean and smooth - even during long exposures that last several minutes. The result is higher signal-to-noise ratio and improved image quality in every frame.
Note: Cooling performance varies with ambient temperature. The lower the ambient temperature, the smaller the achievable differential. Results are based on tests at 30°C ambient. While not found often in Australia, operation below -20°C is not recommended.

Glow Suppression Function*

The ASI4400MC Pro camera features ZWO’s proprietary Glow Suppression technology, which effectively controls sensor glow and maximizes overall imaging performance. This technology is implemented directly at the hardware level and does not require any software intervention.

USB 3.0 & 512MB DDR3 Memory

The ASI4400MC Pro includes a high-speed USB 3.0 interface with a built-in 512 MB DDR3 memory buffer. This design ensures fast and stable data transfer while reducing the risk of dropped frames or transmission errors. The result is reliable image capture, even during long exposures or high-speed downloads.

Anti-dew

The ASI4400MC Pro features a built-in polyimide heater bonded to the protective window to prevent dew and frost buildup, ensuring clear and reliable imaging throughout the night. 

* The heater draws about 5 watts of power and can be turned off through the software when conditions allow, not only to save power but also to reduce the load on USB hubs and external power supplies. 

*While Glow Suppression significantly reduces CMOS sensor glow, it does not eliminate it entirely. A small amount of glow may still be present; however, with dark-frame calibration, it has no impact on the final image quality.

Sensor Tilt Adjustment

The ASI4400MC Pro includes three sets of sensor tilt adjustment screws. Each set has a push and a pull screw that let you fine-tune the sensor’s alignment with your telescope’s optical axis. This adjustment helps correct any slight tilt that can cause stars to appear elongated or out of focus toward the edges of the frame, ensuring sharp, even focus across the entire image.

Camera Performance

The ASI4400MC Pro offers a dynamic range of up to 13 stops, allowing it to capture both bright highlights and faint shadow details in a single exposure. This wide range is key to achieving high dynamic range (HDR) performance, preserving fine tonal transitions and subtle color detail in deep-sky images. When the gain setting reaches 136, the camera automatically activates HCG (High Conversion Gain) mode, which greatly reduces read noise while maintaining full dynamic range. This means you can increase sensitivity for faint targets without adding unwanted gain noise, making it easier to capture clean, detailed images under a variety of conditions.

QE Value

The QE peak value of the ASI4400MC Pro camera is 80%.

Ultra-low Dark Current

Thanks to the ASI4400MC Pro’s advanced cooling system, thermal noise remains extremely low even during long exposures lasting several minutes. Dark current is a small electrical signal created by heat inside the sensor rather than by incoming light. By keeping the sensor temperature low, the camera minimizes this effect, producing cleaner, higher quality images with smoother backgrounds.

UV-IR Cut Filter

The ASI4400MC Pro is equipped with a UV-IR cut filter mounted in front of the sensor. This protective filter blocks unwanted ultraviolet and infrared light that can cause star bloat and color distortion, allowing only visible wavelengths to reach the sensor. By filtering out these non-visible wavelengths, the camera produces sharper stars, more accurate colors, and overall improved image quality in astrophotography.

Product Details

Lightweight Body: 700g
Interface Layout: USB 2.0, USB 3.0, DC
Fan Position & Heat Dissipation Vents
All-Metal Red Body

Connection Method

Mechanical Diagram

What's in the box?

Note：

External power supplies are needed for all ASl-cooled cameras. We recommend you use a 12V@3A~5A DC adapter (D5.5×2.1mm, center pole positive) or a lithium battery with 11-14V to power the camera. If the voltage exceeds this range, the camera will activate its automatic protection mechanism.

The ASI2600 Duo CMOS Camera combines imaging and guiding sensor in one compact body. The main sensor is the Sony IMX571 coming with a native 16bit ADC, 14stops dynamic range and 3.76um square pixel array. The readout noise is as low as 1.0e, and the full well capacity reaches an incredible level of 80ke. And it has no amp glow!

The guide sensor is the Type 1/1.8 SC2210 with excellent NIR sensitivity. The sensor size is 7.68mm x 4.32mm. It has 4umx4um pixels with an array of 1920x1080 and a full depth of 8780e.

The stars on the corner of the guide images affected by reducers back focus distance might not be very round. It is not due to the sensor tilt and will not affect normal use.

Please note that external power supplies are required for all ZWO ASI cooled cameras. Contact BINTEL for the correct power supply or advice to suit your ZWO camera.

Two-in-one design

Thanks to the compact design, the ASI2600MC Duo only needs one USB cable for control. It reduces potential cabling issues and improves setup speeds. You don’t need a separate OAG and guide camera.

Tilt Adjustment from Rear（Optional）

The 3 points from the rear make tilt adjustment much easier without the trouble of removing the tilt plate from the camera.

Performance improvement comparison

Guide sensor

The SC2210 sensor taken from the ASI220MM Mini camera features very high sensitivity. The QE peak value reaches 92% at 500nm. The readout noise is as low as 0.6e. As the new generation of guide sensor, it has achieved great results in guiding, proved by hundreds of astrophotographers.

Main sensor

The main sensor IMX571 features an APS-C format and 26MP total pixels. The size is 23.5mm in width x 15.7mm in height, and the diagonal is 28.3mm. The 3.76um x 3.76um small pixel size accommodates an impressive full depth of 50ke. With the new hardware technology, it is even extended to 80ke.

STARVIS technology

ASI2600 Duo CMOS Camera is based on Sony STARVIS technology. Sony’s back-illuminated CMOS image sensor improves sensitivity and noise reduction – the key factors to enhancing image quality.

Camera performance

Native 16bit ADC

This 16-bit ADC is not a CCD 16-bit ADC. It can really achieve a dynamic range output of 14stops, which will significantly improve the image sharpness and contrast, and also create smoother and more natural color transitions.

FPS

ASI2600 Duo CMOS Camera’s max FPS in RAW 8 mode at full resolution is 15FPS, which is even quicker compared to ASI2600MC Pro.

Extended full well mode

The full well capacity of ASI2600MC Duo is extended to 80ke, which is 1.6x larger than ASI2600MC Pro.

USB 3.0 & 512MB DDR3 buffer

With the match of USB 3.0 and 512MB DDR3 buffer, ASI2600MCDuo provides stable and secure data transmission that can effectively avoid frame-dropping issues during long exposures.

No amp-glow

Traditional CMOS sensors produce a weak infrared light source during operation quite often seen in the corner of uncalibrated images. It is the tell-tale sign of amp glow. As the ASI2600MM Duo uses zero-amp glow circuitry, you won’t have to worry about amp glow even when using high gain, long exposure imaging.

QE (Quantum efficiency)

Based on our testing results, the QE peak value of ASI2600MC Duo is over 91%.

Two-stage TEC cooling

Thanks to the two-stage TEC cooling, ASI2600MM Duo can lower the CMOS sensor temperature to more than 35 degrees Celsius below ambient temperature, which can greatly reduce dark current generation and sensor noise even during extended exposure times.

*The Delta T 35℃ is tested at 30℃ ambient temperature. It might get downto this when the cooling system is working for a long time. Also, as the ambient temperature falls, the Delta T would decrease.

What’s in the Box

Main Sensor

The main sensor IMX571 features an APS-C format and 26MP total pixels. The size is 23.5mm in width x 15.7mm in height, and the diagonal is 28.3mm. The 3.76um x 3.76um small pixel size accommodates an impressive full depth of 50ke. With the new hardware technology, it is even extended to 73ke.

Guide Sensor

The SC2210 sensor taken from the ASI220MM Mini camera features very high sensitivity. The QE peak value reaches 92% at 500nm. The read noise is as low as 0.6e. As the new generation of guide sensor, it has achieved great results in guiding, proved by hundreds of astrophotographers.

Start Your Astrophotography Journey with Great Convenience

The ASI2600MC Air combines guiding, imaging, and smart control into one compact, lightweight device. Say goodbye to complex setups and enjoy a seamless, hassle-free astrophotography experience.

Effortlessly Connect Multiple Devices

4x USB2.0, 3x DC12V 10A, 1x USB Type-C
USB 2.0 ports for your focuser, filter wheel, and mount; DC 12V 10A input/output ports for reliable power; and USB Type-C port for fast file transfers—you can focus on capturing stunning images without worrying about connectivity issues.

Shoot with Confidence: Ample Storage and Stability

With a massive 256GB eMMC storage, the ASI2600MC Air allows you to capture multiple targets with ease. Rigorously tested with over 300 benchmarks, it ensures system stability. Plus, the USB 2.0 ports support up to 1TB external storage, giving you plenty of room for all your astrophotography needs.

Cross-Platform Device Control

Except from ASIAIR App, ASI2600MC Air can also wirelessly connect to ZWO’s proprietary PC control software, ASIStudio, and also other 3rd-party PC software. 3rd-party software can be controlled through ASCOM extended protocol Alpaca (requires ASCOM Platform version V6.6 or higher).

Bluetooth Connection Supported

Nice and Neat Wiring with AM3/AM5

Frame Rate

Camera Specifications

The best solution of 55mm back focus length

Mechanical Diagram

Camera Details

What is in the box?

NEW Smart Deep-sky imaging camera from ZWO with Guiding, Imaging and Smart Control of mounts and accessories.

Main Camera Sensor

The main camera sensor is the popular Sony IMX571 featuring an APS-C format and 26MP total pixels. The size is 23.5mm in width x 15.7mm in height, and the diagonal is 28.3mm. The 3.76um x 3.76um small pixel size accommodates an impressive full depth of 50ke. With the new hardware technology, it is even extended to 73ke

Guide Camera Sensor

The SC2210 sensor taken from the ASI220MM Mini camera features very high sensitivity. The QE peak value reaches 92% at 500nm. The read noise is as low as 0.6e. As the new generation of guide sensor, it has achieved great results in guiding, proved by hundreds of astrophotographers.

Enjoy the Beauty of the Night Sky Anywhere. In the city, suburbs or under dark Aussie skies

Take the hassles out of your your Astrophotography Journey

The ASI2600MC Air combines guiding, imaging, and smart control into one compact, lightweight device. Say goodbye to complex setups and enjoy a seamless, hassle-free astrophotography experience.

Easily Connect Multiple Devices

4x USB2.0, 3x DC12V 10A, 1x USB Type-C
USB 2.0 ports for your focuser, filter wheel, and mount; DC 12V 10A input/output ports for reliable power; and USB Type-C port for fast file transfers—you can focus on capturing stunning images without worrying about connectivity issues.

Shoot with Confidence: Ample Storage and Stability

With a massive 256GB eMMC storage, the ASI2600MC Air allows you to capture multiple targets with ease. Rigorously tested with over 300 benchmarks, it ensures system stability. Plus, the USB 2.0 ports support up to 1TB external storage, giving you plenty of room for all your astrophotography needs.

Dive into the Rich Details of the Celestial Targets

In expanded mode, the full well capacity of this camera reaches 73Ke, which is 1.46 times of that of the IMX571 sensor (51ke), making long-exposure shots less prone to overexposure. The large full well capacity and high dynamic range make capturing both light and dark areas with stunning clarity and detail possible. Witness the miracle details and colours of targets like never before!

Dual-Band Wi-Fi for a stable, solid connection

Experience unparalleled connectivity with our enhanced external dual-band antenna, supporting both 2.4G and 5G frequencies and offering stable and smooth usage within 20 metres.

Cross-Platform Device Control

Apart from from the ASIAIR App, ASI2600MC Air can also wirelessly connect to ZWO’s proprietary PC control software, ASIStudio, and also other 3rd-party PC software. 3rd-party software can be controlled through ASCOM extended protocol Alpaca (requires ASCOM Platform version V6.6 or higher).

Bluetooth Connection Supported

Nice and Neat Wiring with ZWO AM3/AM5 mounts

Get Fully Control of Your Entire Rig at Your Fingertips

With the ASIAIR smart app, you can easily control guiding, imaging, your mount, and electronic focuser—all from your phone. It supports multiple imaging modes, making it easy for even beginners to quickly learn and capture professional-quality images.

Instant Post-Processing and Sharing

Live stack is supported during your imaging session. You may also make adjustments to brightness, contrast and others on the final image. Instantly share your masterpieces on social media platforms and astronomy communities, making your work stand out.

Go Further With ZWO’s Self-Developed System

Powered by ZWO’s patented technologies, our system ensures stable astrophotography performance. Continuous App OTA updates keep your device up-to-date with the latest features, enhancing your user experience and expanding your capabilities.

QE value
Main Sensor

Guide Sensor

Dark Current

Power Consumption
 

IR-Cut coating for OSC camera

Frame Rate

Camera Specifications

Camera details

The best solution to achieve 55mm back focus length

Mechanical Diagram

What is in the box?

NEW Smart Deep-sky imaging colour camera from ZWO with Guiding, Imaging and Smart Control of mounts and accessories.

The ASI585MC Air is ZWO’s newly released ultra-sensitive wireless smart deep-sky camera, it integrates a deep-space sensor, a guiding sensor and a smart astrophotography controller. With this all-in-one design, capturing stunning astrophotography has never been easier!

10 Key highlights
1.3 in 1 Camera: Imaging, Guiding, Control System
2.256G eMMC Storage
3.STARVIS 2 Technology
4.4K Resolution
5.Multiple Interface (Type-C x1 USB 2.0 x4 DC 12V 10A x2）
6.5G/2.4G Dual-band Wi-Fi / Bluetooth
7. Intelligent Live Stacking
8. High Signal-to-Noise Ratio, High Sensitivity
9. Voice Broadcast
10.Get Fully Control of Your Entire Rig at Your Fingertips

Start Your Astrophotography Journey without the dramas

Featuring ZWO's self-developed "Dual Sensor + ASIAir" integration technology. Say goodbye to complex setups and enjoy a seamless, hassle-free astrophotography experience.

Smarts developed in-house by ZWO

Easily Connect to Multiple Devices

4x USB 2.0, 2x DC12V 3A, 1x USB Type-C
USB 2.0 ports for your focuser, filter wheel, and mount; DC 12V 3A input/output ports for reliable power; USB Type-C port for fast file transfers—you can focus on capturing stunning images without worrying about connectivity issues.

256G eMMC Storage： Ample Storage and Stability

With 256GB eMMC storage, the ASI585MC Air allows you to capture multiple targets with ease. Rigorously tested with over 300 benchmarks, it ensures system stability. Plus, the USB 2.0 ports support up to 1TB external storage, giving you plenty of room for all your astrophotography needs.

Starvis 2 4k Sensor

Image Sensor Technology Beyond the Human Eye's Sensitivity
Equipped with the upgraded STARVIS 2 image sensor, supporting a higher dynamic range.
With this technology, the sensitivity and signal-to-noise ratio of the ASI585MC Air are greatly enhanced, delivering exceptional image quality.

Complete Control of Your Entire Rig at Your Fingertips

The ASI585MC Air incorporates multiple ZWO patented technologies and allows you to shoot simply by connecting your phone. It supports App OTA updates, continuously improving the product features, making astrophotography easy and fun, while enriching the user experience

Instant Post-Processing and Sharing

Live stack is supported during your imaging session. You may also make adjustments to brightness, contrast and others on the final image. Instantly share your masterpieces on social media platforms and astronomy communities, making your work stand out.

Low Read Noise, High Dynamic Range

The camera has a built-in HCG mode, which can effectively reduce readout noise at high gain and allow the camera to maintain the same high dynamic range as it does at low gain. When the gain is 252, the HCG mode is automatically turned on and the Dynamic range reaches a level close to 12bit.The readout noise is as low as 0.7e.

QE

Based on ZWO Laboratory calculations, the peak quantum efficiency of ASI585MC Air is 91%

Data source: This data is from ZWO Laboratory. The actual quantum efficiency peak value is subject to real-world data.

Cooling System

Thanks to the two-stage TEC cooling, ASI585MC Air can lower the CMOS sensor temperature to 30-35 degrees Celsius below ambient temperature, which can greatly reduce dark current generation and sensor noise even during extended exposure times.

Power Consumption

IR-Cut coating for OSC camera

Frame Rate

Product Specifications

Camera Specifications

Camera Details

Telescope Connections

Mechanical Diagram

What's in the Box

• Camera body
• T2 extender(21mm)
• T2-M48 extender
• M42-M48 tilter
• USB2.0 cable
• DC 1m cable
• DC 1.5m male-female extension cable
• External antenna
• 2mm M2.5 hex wrench
• Quick guide
• 1m hook&loop tape
  

Main Sensor

Guide Sensor

Start Your Astrophotography Journey with everything at your fingertips!
The ASI585MC/MM Air integrates imaging, guiding, and smart control, featuring ZWO's self-developed "Dual Sensor + ASIAir" integration technology. Say goodbye to complex setups and enjoy a seamless, hassle-free astrophotography experience.

Effortlessly Connect Multiple Devices
4x USB 2.0, 2x DC12V 10A, 1x USB Type-C
USB 2.0 ports for your focuser, filter wheel, and mount; DC 12V 10A input/output ports for reliable power; USB Type-C port for fast file transfers—you can focus on capturing stunning images without worrying about connectivity issues.

Ample Storage, Explore Without Limits
With 256GB eMMC storage, the ASI585MC/MM Air allows you to capture multiple targets with ease. Rigorously tested with over 300 benchmarks, it ensures system stability. Plus, the USB 2.0 ports support up to 1TB external storage, giving you plenty of room for all your astrophotography needs.

Starvis 2  4K Sensor
Image Sensor Technology Beyond the Human Eye's Sensitivity
Equipped with the upgraded STARVIS 2 image sensor, supporting a higher dynamic range.
With this technology, the sensitivity and signal-to-noise ratio of the ASI585MC/MM Air are greatly enhanced, delivering exceptional image quality.

No Amp Glow
The ASI585MC/MM Air exhibits zero amp glow, which ensures extremely clean dark-field images. No matter how long the exposure and how the gain value, you can easily capture high-quality astrophotographs.

300s exposure image

Note: It is implemented directly at the hardware level, it does not require software control.

Dual-Band Wi-Fi for Stable Signal
Experience unparalleled connectivity with our enhanced external dual-band antenna, supporting both 2.4G and 5G frequencies and offering stable and smooth usage within 20 meters.

Cross-Platform Device Control
Except from ASIAIR App, ASI2600MC Air can also wirelessly connect to ZWO’s proprietary PC control software, ASIStudio, and also other 3rd-party PC software. 3rd-party software can be controlled through ASCOM extended protocol Alpaca (requires ASCOM Platform version V6.6 or higher).

(Note: 2.4G has a longer transmission distance but slightly slower speed compared to 5G. The 20-meter range is based on multiple tests of the 2.4G frequency in open areas.)

Get Fully Control of Your Entire Rig at Your Fingertips
Powered by ZWO’s patented technologies, featuring smartphone connectivity and OTA upgrades for a seamless astrophotography experience.
Connect, capture, and upgrade effortlessly — astrophotography made smart and fun.

Instant Post-Processing and Sharing
Live stack is supported during your imaging session. You may also make adjustments to brightness, contrast and others on the final image. Instantly share your masterpieces on social media platforms and astronomy communities, making your work stand out.

Efficient Cooling, Superior Image Quality
The two-stage TEC cooling system lowers the CMOS sensor temperature by 30°C–35°C below ambient, effectively reducing dark current generation.
Even during long exposures of several hundred seconds, noise remains minimal.
Note: The lower the ambient temperature, the smaller the cooling differential.

*Based on tests at 30°C ambient temperature. Cooling efficiency decreases as ambient temperature drops. While uncommon in Australia, operation below –20°C is not recommended.

Low Read Noise, High Dynamic Range
The camera has a built-in HCG mode, which can effectively reduce readout noise at high gain and allow the camera to maintain the same high dynamic range as it does at low gain. When the gain is 200, the HCG mode is automatically turned on and the Dynamic range reaches a level close to 12bit.The readout noise is as low as 0.7e.

ASI585MC Air

ASI585MM Air

QE
After "ZWO Laboratory" calculation, the peak quantum efficiency of ASI585MC Air is 88%. The peak quantum efficiency of ASI585MM Air is 91%
*Data source: This data is from ZWO Laboratory. The actual quantum efficiency peak value is subject to real-world data.

ASI585MC Air

ASI585MM Air

Dark Current

Power Consumption

Built-in Filters
The ASI585MC Air camera features a UV-IR Cut filter in front of the sensor, serving as a protective window that blocks infrared light.

The ASI585MM Air camera is equipped with an AR (Anti-Reflective) coated protective window, which enhances light transmission and minimizes reflections.

Camera Specification

Image Circle Compatibility Reference
Please refer to the diagram below to understand how ASI585MC/MM Air cameras match with various telescope image circles.

ZWO Air cameras are compatible with telescopes that support APS-C or larger image formats.
Note: When using a telescope with an APS-C image circle, you may notice slight distortion in the guide star. If you’re looking for more accurate and stable guiding performance, we recommend using a telescope with a full-frame or larger image circle.

Camera Details

Connection Diagram

Mechanical Diagram

What’s in the box?

Main Features:

Anti-dew

ASI6200 Pro comes with the polyimide heater that can avoid any dew problems.
The anti-dew heater which completely fit the protective window will heat it to avoid any dew problems.

Full Frame format

The ASI6200 Pro camera uses a full-frame format. The outstanding 9576x6388 resolution provided by the onboard Sony IMX455 sensor makes this camera a 61.2-megapixel full frame powerhouse! The sensor length and width are 36mm x 24mm respectively, and the diagonal is 43.3mm. This is a camera with a small pixel size of 3.76um that can accommodate a large well depth of 51.4ke.

Native 16bit ADC

ASI6200 Pro camera is our first batch of CMOS astronomy cameras with true 16-bit ADC. It is not a CCD-style 16-bit ADC – it really can achieve a dynamic range output of 14 stops. This significantly improves the image sharpness and contrast, and the contrast gradients are smoother and more natural-looking.

Built for astrophotography

USB3.0 & 512M DDR3 Memory
The ASI6200 Pro camera is equipped with a USB 3.0 transmission interface and a built-in 512MB DDR3 cache to ensure stable and secure data transmission.

QE value

The QE peak value of the ASI6200MC Pro camera is 80%.

Relative response（ASI6200MC Pro）

The QE peak value of the ASI6200MM Pro camera is 91%.

Ultra-low dark current

The unique dark current suppression technology can further reduce dark current noise. At a cooling temperature of 0°C, the dark current noise is only 0.0017e/s/pix. This means a 300s exposure will only cause a dark current noise of 0.51 e/pix, which is completely negligible!

Camera Details

Some images by ZWO users

The best solution of 55mm back focus length

Mechanical Diagram

What's in the box?

Main Features:

Anti-dew

ASI6200 Pro comes with the polyimide heater that can avoid any dew problems.
The anti-dew heater which completely fit the protective window will heat it to avoid any dew problems.

Full Frame format

The ASI6200 Pro camera uses a full-frame format. The outstanding 9576x6388 resolution provided by the onboard Sony IMX455 sensor makes this camera a 61.2-megapixel full frame powerhouse! The sensor length and width are 36mm x 24mm respectively, and the diagonal is 43.3mm. This is a camera with a small pixel size of 3.76um that can accommodate a large well depth of 51.4ke.

Native 16bit ADC

ASI6200 Pro camera is our first batch of CMOS astronomy cameras with true 16-bit ADC. It is not a CCD-style 16-bit ADC – it really can achieve a dynamic range output of 14 stops. This significantly improves the image sharpness and contrast, and the contrast gradients are smoother and more natural-looking.

Built for astrophotography

USB3.0 & 512M DDR3 Memory
The ASI6200 Pro camera is equipped with a USB 3.0 transmission interface and a built-in 512MB DDR3 cache to ensure stable and secure data transmission.

QE value

The QE peak value of the ASI6200MC Pro camera is 80%.

Relative response（ASI6200MC Pro）

The QE peak value of the ASI6200MM Pro camera is 91%.

Ultra-low dark current

The unique dark current suppression technology can further reduce dark current noise. At a cooling temperature of 0°C, the dark current noise is only 0.0017e/s/pix. This means a 300s exposure will only cause a dark current noise of 0.51 e/pix, which is completely negligible!

Camera Details

Some images by ZWO users

The best solution of 55mm back focus length

Mechanical Diagram

What's in the box?

ASI585MC Pro is a new ZWO deep sky camera based on the 4k SONY CMOS sensor with a 1/1.2″ format and 2.9μm pixels. It has a super high sensitivity and a large resolution of 3840*2160 (8.29MP in total). It also features high transmission speeds – In high-speed mode, the fast frame rate can reach 47fps at full resolution! Being an entry-level DSO camera, it offers great advantages of high cost-effectiveness.

Note:

External power supplies are needed for all ASl-cooled cameras. We recommend you use a 12V@3A~5A DC adapter (D5.5×2.1mm, center pole positive) or a lithium battery with 11-14V to power the camera. You can also use ASIAlR to power the cameras. Be aware that using a power supply out of this voltage range will probably lead to irreparable damage to the camera.

One Camera for All

The STARVIS 2 technology brings ASI585MC Pro more advanced imaging performance compared to other cooled cameras. Its high frame rate makes it not only suitable for DSO photography but also solar/lunar/planetary photography.

Jupiter -Jim Rivera

Moon -Christopher Schementi

NGC3372 ( eta Carina) -Simon Lewis

M42, NGC 1976 (Great Orion Nebula) -Simon Lewis

STARVIS 2

STARVIS 2 was developed by SONY and evolved from STARVIS. It is the latest technology with a wider dynamic range and super-high sensitivity beyond the human eye. Benefiting from it, ASI585MC Pro’s sensitivity and signal-to-noise ratio is greatly improved.

Large Full Well Capacity

The back-illuminated structure improves the camera’s full well capacity. Even with unbinned 2.9μm pixels, ASI585MC Pro has a full well capacity of 40ke-, nearly 3 times that of the last-generation sensor IMX485. A larger full well capacity gets the camera higher efficiency in collecting light, can effectively restrain the highlight area from being overexposed, and also can improve the signal-to-noise ratio.

Zero Amp Glow

ASI585MC Pro exhibits extremely clean dark frames with zero amp glow! No matter how long the exposure and how high the gain value is, you can easily get clean and smooth astro images!

Note: This feature is implemented directly at the hardware level, it does not require software control.

512MB DDR3

ASI585MC Pro uses a USB 3.0 interface, along with the built-in 512MB DDR3 cache, ensuring high-speed, smooth, and stable data transmission.

USB 3.0 Port & USB 2.0 HUB

USB 3.0 Port: Provides 5Gb bandwidth to allow ASI585MC Pro to run at 47fps at 8.29MP full resolution (10bit, high-speed mode).
USB 2.0 HUB: Can be used to connect various kinds of USB devices such as EFW, guide camera, and EAF.

Two-stage TEC Cooling

Thanks to the two-stage TEC cooling, ASI585MC Pro can lower the CMOS sensor temperature to more than 35 degrees Celsius below ambient temperature, which can greatly reduce dark current generation and sensor noise even during extended exposure times.

*The Delta T 35℃ is tested at 30℃ ambient temperature. It might get down when the cooling system is working for a long time. Also, as the ambient temperature falls, the Delta T would decrease.

Below is the dark current curve of ASI585MC Pro at the temperature from -20℃ to 30℃.

Camera Performance

Low read noise, High dynamic range

The camera has a built-in HCG mode, which can effectively reduce read noise at high gain and allow the camera to maintain the same high dynamic range as it does at low gain.

When the gain reaches 252, the HCG mode will be automatically turned on and the dynamic range reaches a level close to 11bit. The read noise in this case can be as low as 0.9e.

QE (Quantum efficiency)

Based on our testing results, the QE peak value of ASI585MC Pro is 91%.

Connection Methods (Back Focus Distance: 55mm)

Connection to External Devices

Structural Dimension Diagram

In the Box

ZWO ASI585MC Pro is a perfect match for either of these APO telescopes

ASI585MC/MM Pro is a new ZWO deep sky camera based on the 4k SONY CMOS sensor with a 1/1.2″ format and 2.9μm pixels. It has a super high sensitivity and a large resolution of 3840*2160 (8.29MP in total). It also features high transmission speeds – In high-speed mode, the fast frame rate can reach 47fps with low read noise at full resolution! It also features a high SNR and high sensitivity, especially in near-infrared wavelength. Being an entry-level DSO camera, it offers great advantages of high cost-effectiveness.

Note：

External power supplies are needed for all ASl-cooled cameras. We recommend you use a 12V@3A~5A DC adapter (D5.5×2.1mm, center pole positive) or a lithium battery with 11-14V to power the camera. Be aware that using a power supply out of this voltage range will probably lead to irreparable damage to the camera.

Why Choose ASI585MC/MM Pro?

One Camera for All

The STARVIS 2 technology brings ASI585 Series more advanced imaging performance compared to other cooled cameras. Its high frame rate makes it not only suitable for DSO photography but also solar/lunar/planetary photography.

Large Full Well Capacity

The back-illuminated structure improves the camera’s full well capacity. Even with unbinned 2.9μm pixels, ASI585 Series has a full well capacity of 40ke-, nearly 3 times that of the last-generation sensor IMX485. A larger full well capacity gets the camera higher efficiency in collecting light, can effectively restrain the highlight area from being overexposed, and also can improve the signal-to-noise ratio.

Zero Amp Glow

ASI585 Series exhibits extremely clean dark frames with zero amp glow! No matter how long the exposure and how high the gain value is, you can easily get clean and smooth astro images!

Note: This feature is implemented directly at the hardware level, it does not require software control.

512MB DDR3

ASI585 Series uses a USB 3.0 interface, along with the built-in 512MB DDR3 cache, ensuring high-speed, smooth, and stable data transmission.

USB 3.0 Port & USB 2.0 HUB

USB 3.0 Port: Provides 5Gb bandwidth to allow ASI585 to run at 47fps at 8.29MP full resolution (10bit, high-speed mode).
USB 2.0 HUB: Can be used to connect various kinds of USB devices such as EFW, guide camera, and EAF.

Two-stage TEC Cooling

Thanks to the two-stage TEC cooling, ASI585 Series can lower the CMOS sensor temperature to more than 35 degrees Celsius below ambient temperature, which can greatly reduce dark current generation and sensor noise even during extended exposure times.

*The Delta T 35℃ is tested at 30℃ ambient temperature. It might get down when the cooling system is working for a long time. Also, as the ambient temperature falls, the Delta T would decrease.

Below is the dark current curve of ASI585 Series at the temperature from -20℃ to 30℃.

Low read noise, High dynamic range

The camera has a built-in HCG mode, which can effectively reduce read noise at high gain and allow the camera to maintain the same high dynamic range as it does at low gain.

When the gain reaches 252, the HCG mode will be automatically turned on and the dynamic range reaches a level close to 11bit. The read noise in this case can be as low as 0.7e.

QE (Quantum efficiency)

Based on our testing results, the QE peak value of ASI585 is 91%.

Structural Dimension Diagram

What is in the box?

ZWO ASI461MM-Pro adopts Sony medium format IMX461 sensor. It has the native 16-bit ADC with 65536 levels, back-illuminated structure and high quantum efficiency, and a great performance in DSO imaging. Milky way imaging and scientific research.

It features very low readout noise and nearly zero visible fixed pattern noise.

100 mega Pixels of 11656 x 8750. The 3.76 um pixel accommodates an impressive full well capacity of 50.3ke. While at Bin2 mode, you can get and even larger full well capacity of 198e and a large pixel size of 7.5um x 7.5um.

ASI461MM-Pro is a 100MP camera with a large sensor size of 44mm x 33mmand a high resolution

Note: External Power supplies are need for all ASI cooled cameras. We recommend you use a 12v@3amp DC adapter (5.5 x 21. Center Pole Positive)

No Amp Glow

Traditional CMOS sensors produce a weak infrared light source during operation, which is often seen in the corners of uncalibrated images. This is a tell-tale sign of “amp glow”. As the ASI 4612MM-Pro uses zero amp glow circuitry, you won’t have to worry about amp glow even when using high gain, long exposure imaging.

Anti -Dew

ASI461MM-Pro come with a polyimide heat that sits on top of the protective window. It will heat the window to avoid dew problems.

The power consumption of the heater is around 5W. You can turn this function off in your imaging software if you want to save power.

Camera Performance

HCG Mode

ASI461MM-Pro is integrated with HCG mode, which can get help greatly reduce readout noise and keep the dynamic range at a high level when you’re using higher gain.

Set gain 100, then the HCG mode will be automatically turned on. The readout noise can be very low, while the dynamic range is basically unchanged.

Quantum Efficiency

QE curves and readout noise are two of the most important elements to measure a camera’s performance. Based on our calculations, the QE peak values of ASI461MM-P is 91% @ 460nm

Absolute Quatum Efficiency

Relative Quantum Efficiency

Two Stage TEC Cooling

The TEC cooling system of the ASI461MM-Pro can precisely control the temperature of the sensor, and lower it to 30 – 35 degrees C below ambient temperature

Product details

Connection to External Device

Structural Dimensions

SKU: ASI461MM-Pro

ZWO ASI 174MM Astronomy Camera

ZWO's new ASI174MM camera uses Sony's latest Pregius IMX174 CMOS sensor. It combines several features putting it high on the list for anyone wanting to capture spectacular lunar and solar images, high resolution planetary images at long focal lengths or even as an autoguider without worrying "will I be able to find a guide star?"

The main advantages of the Sony IMX174 chip are:

• Large sensor size of more than 13mm across the diagonal
• High quantum efficiency of 78% at its peak
• Very low read noise of only 6e
• Extremely fast frame rate - effectively freezing moments of steady seeing
• Global shutter and no fixed pattern noise

Sony IMX174 Sensor - big benefits

Prior to the release of the ZWO ASI174 cameras it was difficult to find a good camera capable of full disk images of the Moon or Sun. This is no problem with the ASI174. It's sensor has a pixel array of 1936 x 1216 with 5.86 µm square pixels. This makes the diagonal measurement of the chip 13.4mm across.

The Image above shows the comparative field of view between the ASI120 camera and the new ASI174. Shot through a small refractor at 600mm focal length you can see the ASI174 will easily cover 0.5° of sky. It is now very easy to caputre full disk images of the Sun through many popular solar telescopes from Coronado and Lunt - no more mosaics required.

Quantum Efficiency and Read Noise

Another big benefit of Sony's IMX174 chip is the high quantum efficiency coupled with very low read noise. This equates directly to better signal to noise. Even with very fast capture rates you will get more signal from your target and less contribution from reading off the sensor of the camera - in essence cleaner data resulting in better images!

For a few years now Sony's highly regarded ICX618 CCD chip was a popular choice for planetary cameras. If we compare the new Sony IMX174 sensor to Sony's ICX618 the news is good for both QE and read noise.

The quantum efficiency of the IMX174 is slightly more than 11% better with read noise of nearly half! (6e for the IMX174 vs 11e for the ICX618).

Mechanical Drawing ZWO ASI174MM

The ASI183MC, ZWO's most sensitive camera to date with a peak absolute Q.E. of 84% in mono made possible by a back illuminated sensor.

Introducing the ASI183 camera series, the most sensitivie cameras in ZWO history. Peak Q.E. of the mono sensor reaches 84%!

Astrophotography Performance

The ASI183 cameras has a very large full well capacity（15000e） for such small pixel size, 1.6e read noise @ 30DB, and 12stops dynamic range @ Gain=0. The ASI183 cameras also utilize firmware features to minimize amplifier glow for maximum performance in astrophotography.

High Speed

Fast FPS can be used in solar and lunar imaging, as well as for live viewing/EAA.The high speed readout may also be used for real-time focusing, true lucky imaging of double stars and other small objects, planetary imaging of the major planets in the solar system, and much more.

10Bit ADC
5496×3672 19fps
3840×2160 41.04fps
1920×1080 80.10fps
1280×720 117.30fps
12bit ADC
5496×3672 19fps
3840×2160 36.12fps
1920×1080 70.48fps
1280×720 103.23fps

High QE

Sony’s back-illuminated Exmor R technology, giving it excellent Deep Sky performance. ASI183 QE peak reaches a remarkable 84%. In Ha channel, QE is still over 60%.

Having high QE means more of the light that enters your telescope and reaches the sensor is actually used. With 84% peak Q.E. and no less than ~50% within the visible spectrum, the ASI183 will utilize a high percentage of the light that reaches it, improving your signal quality.

USB 3.0 Port & ST4 Port

USB 3.0 Port: Provide 5Gb bandwidth to make it possible for ASI183 to run at 19 fps (12bit, normal mode) or 19 fps (10bit, high speed mode) at full resolution(20.18Mega).

ST4 Port: Can be used connect with auto guide port of mount, for guiding.

ASI 183MC Instruction Manual

Mechanical Drawing

What is in the box?

ASI183 box includes all necessary cables, adapters, and manuals.

Camera Technical Details

Environmental Conditions

Max FPS at Full Resolution (10-bit ADC)

Max FPS at Full Resolution (12-bit ADC)

Introducing the ASI183MM, ZWO's most sensitive camera to date with a peak absolute Q.E. of 84% made possible by a back illuminated sensor.

Astrophotography Performance

The ASI183 cameras have a very large full well capacity（15000e） for such small pixel size, 1.6e read noise @ 30DB, and 12stops dynamic range @ Gain=0. The ASI183 cameras also utilize firmware features to minimize amplifier glow for maximum performance in astrophotography.

High Speed

Fast FPS can be used in solar and lunar imaging, as well as for live viewing/EAA.The high speed readout may also be used for real-time focusing, true lucky imaging of double stars and other small objects, planetary imaging of the major planets in the solar system, and much more.

10Bit ADC
5496×3672 19fps
3840×2160 41.04fps
1920×1080 80.10fps
1280×720 117.30fps
12bit ADC
5496×3672 19fps
3840×2160 36.12fps
1920×1080 70.48fps
1280×720 103.23fps

High QE

Sony’s back-illuminated Exmor R technology, giving it excellent Deep Sky performance. ASI183 QE peak reaches a remarkable 84%. In Ha channel, QE is still a over 60%.

Having high QE means more of the light that enters your telescope and reaches the sensor is actually used. With 84% peak Q.E. and no less than ~50% within the visible spectrum, the ASI183 will utilize a high percentage of the light that reaches it, improving your signal quality.

USB 3.0 Port & ST4 Port

USB 3.0 Port: Provide 5Gb bandwidth to make it possible for ASI183 to run at 19 fps (12bit, normal mode) or 19 fps (10bit, high speed mode) at full resolution(20.18Mega).

ST4 Port: can be used connect with auto guide port of mount, for guiding.

Mechanical Drawing

What is in the box?

ASI183 box includes all necessary cables, adapters, and manuals.

Camera Technical Details

Environmental Conditions

Max FPS at Full Resolution (10-bit ADC)

Max FPS at Full Resolution (12-bit ADC)

Astronomical OSC camera with large full well capacity
ASI585MC

ASI585MC adopts Sony IMX585 CMOS sensor. As one of ZWO's latest OSC planetary cameras, it features a large sensor format of 1/1.2", a high resolution of 3840*2160, and a surprisingly amazing characteristic of ZERO AMP GLOW! The pixel size is 2.9um*2.9um. In 12-bit mode, it produces 46.9 FPS with super low readout noise!

8.29MP Senor

ASI585MC has the same pixel size of the ASI462MC at 2.9um, but its resolution is 4 times that of ASI462MC, which is a total of 8.29 megapixels. The sensor size is 11.13*6.26mm, and the diagonal length is 12.84mm. The 1/1.2" large sensor format makes it very suitable for solar and lunar imaging. It can also be used as an all-sky camera or live camera to observe and monitor cloud cover, rain, meteors and other weather conditions.

STARVIS 2

ASI585MC adopts the Latest SONY IMX585 sensor with STARVIS 2 technology. Featuring zero amp glow, lower dark current noise, and 3 times larger full well capacity, this camera is regarded as an upgrade of ASI485MC. It is also more sensitive to red, green and near infrared (NIR) lights compared to ASI485MC, especially in >850nm wavelength range, its light sensitivity is 1.5 times greater than ASI485MC.

Upgraded Model

The ASI585MC is an upgraded camera to the ASI485MC. Compared with the ASI485MC, it has the characteristics of a larger full well depth and no amp glow.
Model

Large Full Well Depth

Thanks to the back-illuminated sensor structure and advanced pixel technology, the camera has very low readout noise and a large full well depth. Especially in low light conditions, the camera performs excellent, capturing very clear images of celestial objects.

Camera Curve

Low read noise, high dynamic range

The camera has a built-in HCG mode, which can effectively reduce readout noise at high gain and allow the camera to maintain the same high dynamic range as it does low gain. When the gain is 252, the HCG mode is automatically turned on and the Dynamic range reaches a level close to 12bit. 

The readout noise is as low as 1.5.

aintain the same high dynamic range as it does at low gain. When the gain is 150, the HCG mode is automatically turned on and the dynamic range reaches a level close to 12bit. The readout noise is as low as 0.8e.

Astronomical camera with large full well capacity
ASI585MM

ASI585MC adopts Sony IMX585 CMOS sensor. As one of ZWO's latest planetary cameras, it features a large sensor format of 1/1.2", a high resolution of 3840*2160, and a surprisingly amazing characteristic of ZERO AMP GLOW! The pixel size is 2.9um*2.9um. In 12-bit mode, it produces 46.9 FPS with super low readout noise!

8.29MP Senor

ASI585MM has the same pixel size of the ASI462MC at 2.9um, but its resolution is 4 times that of ASI462MC, which is a total of 8.29 megapixels. The sensor size is 11.13*6.26mm, and the diagonal length is 12.84mm. The 1/1.2" large sensor format makes it very suitable for solar and lunar imaging. It can also be used as an all-sky camera or live camera to observe and monitor cloud cover, rain, meteors and other weather conditions.

STARVIS 2

ASI585MM adopts the Latest SONY IMX585 sensor with STARVIS 2 technology. Featuring zero amp glow, lower dark current noise, and 3 times larger full well capacity, this camera is regarded as an upgrade of ASI485MC. It is also more sensitive to red, green and near infrared (NIR) lights compared to ASI485MC, especially in >850nm wavelength range, its light sensitivity is 1.5 times greater than ASI485MC.

Upgraded Model

The ASI585MM is an upgraded camera to the ASI485. Compared with the ASI485MC, it has the characteristics of a larger full well depth and no amp glow.

Large Full Well Depth

Thanks to the back-illuminated sensor structure and advanced pixel technology, the camera has very low readout noise and a large full well depth. Especially in low light conditions, the camera performs excellent, capturing very clear images of celestial objects.

Camera Curve

Low read noise, high dynamic range

The camera has a built-in HCG mode, which can effectively reduce readout noise at high gain and allow the camera to m aintain the same high dynamic range as it does at low gain. When the gain is 150, the HCG mode is automatically turned on and the dynamic range reaches a level close to 12bit. The readout noise is as low as 0.8e.

The NEW ZWO ASI 662MC One Shot Color Camera with High Sensitivity

The new ZWO ASI 662MC adopts the Sony IMX662 sensor, has a rolling shutter, a frame size of 1/2.8", and a pixel size of 2.9um, and has 2.07million pixels (1920 x 1080). In high-speed mode, the CMOS sensor can output 102.6 frames per second at full resolution and provide a low read noise level.

Large Full Well capacity, not easy to overexposure

The ZWO ASI 662MC adopts the Sony 662MC sensor with the latest technology. Compared to the previous generation of sensors, it has a very low readout noise and extremely large full well capacity which is 3 times larger than that of the IMX462MC. This helps effectively with overexposure issues and allows longer exposure s. In low light conditions, the camera performs excellently, capturing very clear images of celestial objects.

STARVIS 2

ZWO ASI 662MC adopts the latest Sony IMX662 sensor with advanced STARVIS 2 technology. Featuring zero amp glow, higher sensitivity to red and Near Infrared (NIR) light, 3 times the full well capacity. it can be regarded as an upgrade of the ASI462MC. Also, its dark current noise is several times lower than the ASI462MC.

USB3.0 and 256M DDR Memory

The camera is equipped with a USB 3.0 transmission interface and a built-in 256MB DDR cache to ensure stable and secure data transmission. Under long exposure, it effectively avoids frame dropping and greatly reduces the glow effect caused by slow reading speed.

No Amp Glow

ZWO ASI 662MC exhibits zero amp glow, no matter how long the exposure and how high the gain value is. Since it is implemented directly at the hardware level, it does not require software control.

300 Second exposure with ASI 462MC

300 Second exposure with ASI662MC

Quantum Efficiency

The QE curve and noise readout are very important parameters to measure the camera's performance. Higher QE and lower readout noise are necessary to improve the image signal-to-noise ratio.

Camera Curve low read noise, high dynamic range

Readout noise includes pixel noise, circuit noise, and ADC quantization noise. The lower the readout noise, the better. As can be seen, the readout noise of the ZWO ASI 662MC is very low compared to CCD camera. The built-in HCG mode can effectively reduce the readout noise at high gain and allow the camera to maintain the same high dynamic range as it does at low gain. When the gain is 252, the HCG mode is automatically tuned on and the dynamic range rises back to 12-bit.

What's in the box

The ZWO ASI662MC/MM camera is equipped with the Sony-IMX662 rolling shutter CMOS. Boasting a 1/2.8” frame size combined with a 2.9μm pixel size, it features 2.07 million pixels (1920×1080), and possesses both high sensitivity and low read noise characteristics. In high-speed mode, it can output 107.6 frames per second, providing reliable support for planetary observation.

The ASI662MC/MM is equipped with the Sony-IMX662 rolling shutter CMOS. Boasting a 1/2.8” frame size combined with a 2.9μm pixel size, it features 2.07 million pixels (1920×1080), and possesses both high sensitivity and low read noise characteristics. In high-speed mode, it can output 107.6 frames per second, providing reliable support for planetary observation.

Product Highlights

Quantum Efficiency

The QE curve and readout noise are very important parameters to measure the camera's performance. Higher QE and lower readout noise are necessary to improve the image signal-to-noise ratio.

The peak quantum efficiency of ASI662MC is 91%.

Based on internal testing and calculation, the peak quantum efficiency of ASI662MM is 91%.

Camera Details

Connecting the ZWO ASI662MM to a telescope

Mechanical Diagram

Mechanical Diagram