A new modern large Maksutov telescope for superb viewing and imaging

• 200 mm Maksutov Cassegrain flat field optics Edge to edge sharpness and contrast
• 2000 mm focal length at F10 Large 44 mm image height support
• Optional 0.7x focal reducer compatibility
• Compact well balanced OTA design

Overview

Available May 2026!

Discover why "Maks" are renowned for their sharp imaging and visual observation with the new Sky-Watcher Skymax 200DX Maksutov Cassegrain Telescope

The Sky-Watcher Skymax 200DX Maksutov Cassegrain Telescope is a premium 200 mm optical system built for astronomers and astrophotographers who want exceptional sharpness, strong contrast, and consistent field flatness across a large image circle.

Designed around an optimised flat field Maksutov Cassegrain layout, the Skymax 200DX delivers clean, accurate performance for detailed visual observation and high resolution imaging.

With an effective aperture of 200 mm and a focal length of 2000 mm at F10, this telescope excels at revealing fine surface detail on the Moon and planets while also delivering strong results on compact deep sky targets. Its advanced optical design helps suppress off axis coma and other aberrations, producing consistent star images from the centre of the field right through to the edge.

For imaging applications, the Skymax 200DX includes a generous 44 mm image height, making it well suited for modern large sensor cameras and full frame astrophotography workflows. For users wanting wider fields and faster exposure times, an optional 0.7x focal reducer is available, expanding flexibility without taking away from the telescope’s refined optical purpose.

Despite its high performance optical profile, the Skymax 200DX remains compact and well balanced, making it a practical option for permanent observatory setups or portable imaging rigs when paired with a suitably rated equatorial mount.

Specifications

The Accura 70mm Mini Telescope is a compact refractor engineered for both celestial and terrestrial viewing. Its 70mm objective and 300mm focal length deliver three distinct magnification levels (15x, 20x, and 50x), via interchangeable eyepieces (6mm, 12mm, 20mm), allowing you to balance field of view with detail depending on your target. 

The included moon filter reduces glare during lunar observation, while the red dot finder scope accelerates target location. 

At just 2kg with a lightweight aluminium tripod, it's genuinely portable for field sessions or backyard astronomy. Ideal for observers seeking a no-fuss instrument that handles both night-sky exploration and daytime long-range viewing without sacrificing optical quality.

Specs:

In The Box:

• Accura Mini 70 Relfector Telescope
• Tripod
• 5x24 Finderscope
• 45 degree correct Image attachement
• Moon filter
• 3 x eyepieces (H6mm, F12mm, H20mm)
• 1.5x Erecting Eyepiece
• Aluminium Alloy Tripod
• Attachment plate
• Screws
• User manual 

The Accura Traveller 70mm refractor delivers impressive optical performance in a portable package. With a 700mm focal length and fully coated glass optics, it achieves up to 210x magnification, ideal for lunar detail, planetary observation, and deep-sky exploration.

 The included 3x Barlow lens and eyepieces (25mm, 10mm) provide flexible magnification options, while the red dot finder scope ensures quick target acquisition.

 The 45° erect prism diagonal keeps views upright for terrestrial use. Lightweight aluminium tripod and carry case make transport effortless. Quick setup means more time observing. A capable choice for amateur astronomers seeking versatility without bulk.

Specs:

What's in the Box:

• 70mm Travel Telescope,
• Soft Carry Case,
• Correcting Prism,
• 2x Eyepieces,
• 3x Barlow Lens,
• Tripod, Mount,
• Red Dot Finder

• 1,500 lumen max output White, UV, and green laser
• Built-in 1,500mAh battery
• USB-C intelligent charging
• IPX7 and 2m impact resistant

The Nitecore EDC17 EU-Class-1 is a compact, high-performance everyday carry flashlight built for outdoor enthusiasts in Australia.

With 1,500 lumens, a precision beam reaching 230 metres, and three powerful light sources — white light, UV light, and a Class-1 green laser — it delivers unmatched versatility in a rugged, pocket-ready form.

 Three Light Sources for Maximum Utility The EDC17 combines a high-intensity white LED, a powerful UV emitter, and a Class-1 green laser, allowing seamless switching between inspection, illumination, and signaling tasks. This makes it ideal for trades, law enforcement, and outdoor navigation.

High-Brightness White Light With a peak output of 1,500 lumens, the white light provides strong long-range illumination supported by a precision metal orange-peel reflector. This ensures a smooth beam profile with both reach and spill, perfect for search use, night work, and general EDC.

UV Light for Inspection Tasks Featuring adjustable UV output (220mW to 1,350mW), the EDC17 excels in leak detection, currency verification, mineral inspection, and even forensic use. Three selectable UV power levels enhance flexibility for professional inspection environments.

Class-1 Green Laser Function The integrated laser offers precise pointing and marking capability. Designed to meet strict Class-1 safety standards, it is suitable for controlled tasks like alignment, signalling, and instructional use.

Built-In Rechargeable Power Powered by a 1,500mAh Li-ion battery, the flashlight delivers runtimes up to 260 hours in ultralow mode. The USB-C intelligent charging system ensures safe, efficient recharging with clear power indicators.

Rugged, Duty-Ready Construction Built from high-strength stainless steel with a PVD coating, the EDC17 withstands harsh Australian environments. With IPX7 waterproofing and 2-metre impact resistance, it’s dependable in wet weather, worksite conditions, and outdoor field use.

Compact, powerful, and engineered for multi-purpose everyday carry, the Nitecore EDC17 EU-Class-1 is an essential tool for anyone needing reliable illumination in Australian conditions.  

Specifications

Includes:

• NITECORE EDC17 Flashlight
• Pocket Clip
• User Manual

This V-Style Dove tail bar is designed for DSLR cameras to  attach your DSLR to a dedicated telescope mount.

Attach the dovetail bar to the DSLR camera body using the supplied 1/4” or 3/8" inch screws.

Like all tripods or camera mounting systems, do not over-tighten the screw to avoid possible damage to the camera body.

All-sky Camera

Introducing the ASI676MC/MM , the all-sky camera featuring a unique square 1/1.6-inch image sensor and a super high resolution of 12MP! It is perfectly suited for meteor recording and full sky surveillance. The square format facilitates easier composition, making mosaic stitch simpler and more efficient, and the high resolution brings you clear details of the Sun and our Moon. With this camera, you may start your marvelous journey to explore the boundless night sky.

ASI676MC / MM Highlights

Why Square Format?

One of the biggest benefits of ASI676MC/MM's square format is it makes the whole mosaic construction process much easier by eliminating the need to consider the difference between the long and wide sides of the format during mosaic stitching.

Not only that, the square format also makes the ASI676MC/MM more compatible with various types of lenses such as fisheye lenses and wide-angle lenses. Thus, ASI676MC/MM is more suitable for tasks such as meteor recording and full sky surveillance.

STARVIS 2

STARVIS is a sensor technology developed by Sony that surpasses the sensitivity of the human eye. STARVIS 2 is an advancement of STARVIS technology, supporting an even higher dynamic range.

With this technology, ASI676MC/MM exhibits lower readout noise and dark current, along with significantly enhanced sensitivity in the near-infrared spectrum.

256MB DDR3

The camera is equipped with a USB 3.0 transmission interface and a built-in 256MB DDR3 cache to ensure stable and secure data transmission.

No Amp Glow

ASI676MC/MM does not have any amp glow, no matter how long the exposure and how high the gain value you set.

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

HCG Mode

The camera has a built-in HCG mode, which can effectively reduce readout noise at high gain. This allows the camera to maintain the same high dynamic range as it does at low gain. When the gain is 180, the HCG mode is automatically turned on. The readout noise is as low as 0.56e, and the dynamic range can still reach a level close to 11 stops.

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.

ASI676MM

Dark Current Noise

The ASI676MC/MM's lower dark current noise means that the image signal-to-noise ratio is also higher, especially when photographing dark objects, it produces images with better sharpness.

Coated Window

The ASI676MM camera features an AR-coated protective filter in front of the sensor, with a diameter of 21 mm and a thickness of 1.1 mm. It protects the sensor from external damage while enhancing light transmission from the near-ultraviolet to the near-infrared spectrum.

Connection Methods

Connection to External Devices

Structure Dimension Diagram

What's in the Box?

By Jeff Kanipe 

Product information: Softbound, 6 by 9 inches, 432 pages, first published 2024, colour.

Annals of the Deep Sky is a comprehensive reference that guides amateur and semipro astronomers into every mind-boggling corner of the observational universe. Each volume presents extensive descriptions of prominent stars and deep-sky objects. No other popular work in astronomy provides the comprehensive historical background and astrophysical appraisals of prominent stars and celestial objects.

In volume 12 of Annals of the Deep Sky, explore the realms of Hydrus, Indus, Lacerta, Leo, Leo Minor, Lepus, Libra, and Lupus. Featured objects in Hydrus include NGC 602, a young version of the Orion Nebula, and NGC 1466, a bright, rich globular cluster. In Indus, the galaxy pair NGC 6935/6937 presents very different spiral-type morphologies. Lacerta harbors BL Lacertae, the prototype of a class of active galactic nuclei.

Leo includes the famous Leo Triplet and the striking pair M95 and M96, and Leo Minor includes the two interacting systems of Arp 107 and NGC 3395/3396. Lepus has R Leporis, the symbiotic star SS Leporis, and an incipient planetary nebula.  Libra includes the Algol-type variable Delta Librae, HD 140283, and NGC 5728, a triple-ringed Seyfert 2 galaxy.

Finally, Lupus hosts the Lupus Clouds, among the nearest low-mass star-forming regions; IC 4406, an edge-on planetary nebula; and NGC 5643, a grand design spiral galaxy with complex inner structure.

Saxon Slow Motion Control Cables deliver precise, hands-on adjustment for your telescope mount. Compatible with AZ, EQ3, and EQ5 mounts, these flexible cables enable smooth tracking and repositioning without disturbing your eyepiece view. Simply connect to your mount and gain the control needed for comfortable, extended observing sessions. Essential for serious stargazers seeking refined pointing accuracy.

Bintel UHC Narrowband Filter – 1.25"

The Bintel UHC Narrowband Filter is designed to dramatically improve contrast when visually observing emission nebulae, especially from light-polluted suburban and city skies. By selectively passing key nebular emission lines while blocking common artificial light sources, it helps faint objects stand out more clearly against a darker background sky.

Unlike broadband filters, the UHC’s narrower passband delivers stronger contrast on classic nebulae such as The Orion Nebula, The Carina Nebula, The Lagoon Nebula and so many more. Even under urban lighting, brighter nebulae become easier to detect, while dark-sky observers will appreciate the added structure and subtle detail revealed.

Advanced multilayer dielectric coatings provide excellent transmission (over 97% across the passband) while fully blocking major light pollution lines. This high efficiency makes the filter particularly effective with small to medium aperture telescopes. Ion beam–hardened coatings ensure long-term durability and scratch resistance.

Key Features

• Ultra High Contrast (UHC) narrowband design for visual observing

• Strong enhancement of emission nebulae contrast

• High transmission at H-beta (486.1nm) and OIII (495.9nm & 500.7nm)

• Over 97% transmission across the passband

• Effectively blocks common light pollution wavelengths

• Durable multilayer dielectric, ion beam–hardened coatings

• Standard 1.25" filter thread fits most eyepieces

Specifications

• Type: UHC light pollution suppression filter

• Size: 1.25" (standard thread)

• Material: Optical glass with aluminium cell

• Application: Screws directly into the barrel of 1.25" eyepieces

An essential visual filter for anyone who enjoys observing nebulae, the Bintel UHC Narrowband Filter delivers noticeably darker skies, brighter nebulae, and more rewarding views, especially where light pollution would otherwise limit what you can see.

High performance Japanese ED Optics for optimal clarity and viewing

Precision-engineered for the field, the Thrive HD 20–60x85 ED Spotting Scope delivers next-level clarity and rugged performance for serious outdoor enthusiasts and professionals. Featuring premium Japanese Extra-low Dispersion (ED) glass and Fully Broadband Multi-Coated (FBMC) optics, it minimises chromatic aberration and produces outstanding colour fidelity with exceptional edge-to-edge sharpness.

• 20–60x Zoom Range – versatile power for long-range viewing and fine detail
• 85 mm Japanese ED Objective Lens – superior colour correction and light transmission
• Fully Broadband Multi-Coated (FBMC) Optics – high contrast and vibrant image detail
• Dielectric-Coated Prisms – enhanced brightness and optical efficiency
• Linear Zoom Mechanism & Large Focus Wheel – smooth, precise control

Precision-engineered for the field, the Thrive HD 20–60x85 ED Spotting Scope delivers next-level clarity and rugged performance for serious outdoor enthusiasts and professionals. Featuring premium Japanese Extra-low Dispersion (ED) glass and Fully Broadband Multi-Coated (FBMC) optics, it minimises chromatic aberration and produces outstanding colour fidelity with exceptional edge-to-edge sharpness.

The large 85 mm objective lens gathers abundant light for crisp, bright images—even at higher magnifications. With its 20–60x zoom range, you can transition from sweeping landscape views to pinpoint detail in seconds.

Every element of the Thrive HD is built to perform in real-world conditions. The argon-filled, IPX6 waterproof chassis is sealed against dust and heavy rain, ensuring dependable performance in the harshest Australian environments. A large focus wheel and smooth linear zoom ring deliver intuitive, precise control when it matters most.

Offering optical performance that rivals European brands at a fraction of the cost, the Thrive HD sets a new standard for value, performance, and durability in the field.

Specifications

Included 

• ZeroTech Thrive HD 20-60x85 ED Spotting Scope
• Soft protective carry case w/ shoulder strap
• Welcome card/ instruction manual QR code link
• High quality ZT lens cloth

Lightweight carbon fibre travel tripod

The Vanguard Vesta GO 234CV10 carbon-fiber travel tripod includes a VEO PV-10 fluid 2-way video head with counterbalancing spring assist and a QS-55P Arca-standard quick-release plate. These tripods are designed to be ultra-lightweight and packable for maximum portability, while still giving you reliable stability for optics or cameras.

Ideal for star tracker mounts , spotting scopes or larger astronomy binoculars.

• Ultra-compact fluid 2-way video head with counterbalancing spring assist
• Three leg angles (20, 50, and 80 degrees) for prone, sitting, and standing positions
• Compact, lightweight design is perfect for packing. Weighs only 1.3 kg
• Silent, easy-clean twist leg locks
• Smartphone holder and deluxe storage/carrying bag included
• Center column with built-in short column for low-angle shooting
• Spring-loaded hook to add weight
• Folds down to just over 44cm, making it easily packable
• 5kg max load and 23mm diameter legs provide excellent stability

Specifications

The Sky-Watcher 2-Inch NOMAD 4 4x Tele-Centric Focal Extender is a high-quality optical accessory with a variety of uses and connecting options for visual and imaging use.

VISUAL USE: Used as a Barlow Lens with an eyepiece for visual use, NOMAD 4 effectively multiplies the magnification of any eyepiece by five times, allowing for detailed observations of celestial objects such as the Moon and planetary surfaces. Constructed with premium high-index glass elements and multi coatings, it ensures minimal light loss and maximum clarity. Features a self-centering brass compression ring which avoids marring to eyepieces and a captive eyepiece retaining screw.

IMAGING USES: The premium 4-lens design provides images without colour difference as well as providing excellent field collimation. NOMAD 4 is ideal for taking spectacular high resolution photos of planetary surfaces or the surface of the Moon without compromising the quality of the telescope. So in other words it will maintain the apochromatic performance of an ED Apo telescope!! A CCD camera can be mounted directly using the supplied CCD adaptor. A DSLR camera can be mounted with the supplied DSLR adapter (camera M48x0.75 ring required).

The NOMAD 4 will be a very useful addition to the toolkit of many an astronomer !

FEATURES

• 4x Magnification
• 4-Element optical design
• Brass, self-centering compression ring to protect your eyepieces from marring
• Proprietary tuned full multi-coatings & high index glass
• Blackened lens edges & Anti-reflective threads
• Compatible with 2″ & 1.25″ Eyepieces (1.25″ Eyepiece adaptor included)
• CCD Adaptor supplied
• DSLR Camera Adaptor supplied (M48x0.75). M48 ring for DSLR required.
• Captive lock screws that can’t fall out
• 2″ (50.8mm) Barrel, Threaded for 2″ filters
• Safety undercut in nosepiece barrel for extra locking security
• Metal body construction

The Sky-Watcher 2-Inch NOMAD 2 2x Tele-Centric Focal Extender is a high-quality optical accessory with a variety of uses and connecting options for visual and imaging use.

VISUAL USE: Used as a Barlow Lens with an eyepiece for visual use, it effectively multiplies the magnification of any eyepiece by five times, allowing for detailed observations of celestial objects such as the Moon and planetary surfaces. Constructed with premium high-index glass elements and multi coatings, it ensures minimal light loss and maximum clarity. Features a self-centering brass compression ring which avoids marring to eyepieces and a captive eyepiece retaining screw.

IMAGING USES: The premium 4-lens design provides images without colour difference as well as providing excellent field collimation. It is ideal for taking spectacular high resolution photos of planetary surfaces or the surface of the Moon without compromising the quality of the telescope. So in other words it will maintain the apochromatic performance of an ED Apo telescope!! A CCD camera can be mounted directly using the supplied CCD adaptor. A DSLR camera can be mounted with the supplied DSLR adapter (camera M48x0.75 ring required).

The NOMAD 2 will be a very useful addition to the toolkit of many an astronomer !

FEATURES

• 2x Magnification
• 4-Element optical design
• Brass, self-centering compression ring to protect your eyepieces from marring
• Proprietary tuned full multi-coatings & high index glass
• Blackened lens edges & Anti-reflective threads
• Compatible with 2″ & 1.25″ Eyepieces (1.25″ Eyepiece adaptor included)
• CCD Adaptor supplied
• DSLR Camera Adaptor supplied (M48x0.75). M48 ring for DSLR required.
• Captive lock screws that can’t fall out
• 2″ (50.8mm) Barrel, Threaded for 2″ filters
• Safety undercut in nosepiece barrel for extra locking security
• Metal body construction

New version of a proven, robust telescope mount, the Sky-Watcher HEQ-5, offers smoother movement and tracking, along with updated connectivity and power management

The Sky-Watcher HEQ5-R PRO brings serious design improvements to one of the world’s most popular equatorial mounts. Built for serious observers and astrophotographers, the HEQ5-R PRO combines superior mechanics, smart connectivity, and smooth, quiet tracking to deliver an exceptional observing and imaging experience.

A new belt-driven system ensures ultra-smooth slewing and significantly reduced backlash, improving guiding accuracy for long-exposure astrophotography. The upgraded worm wheels—with 160 teeth on the RA axis and 144 on DEC—enhance tracking precision and allow for a higher payload.

The mount also introduces a built-in USB hub and external power ports, simplifying cable management and providing direct connections for cameras, guide scopes, and accessories. The refined exterior design, robust construction, and stainless-steel tripod deliver stability and performance that astrophotographers can rely on.

Upgrade Highlights include:

• Precision Belt Drive System – Reduced backlash and smoother motion for more accurate guiding.
• Upgraded Worm Gear Assembly – Increased tooth count for enhanced tracking performance.
• Integrated USB Hub and Power Ports – Makes for easier connection and power for imaging accessories.
• Higher Payload Capacity – Now supports up to 15 kg, ideal for the larger optical setups favoured by astrophotographers.
• Quiet, Smooth Slewing – Hybrid stepper motors with micro-step drive control.
• Streamlined  Design – Durable, ergonomic structure with compact counterweights and improved cable routing.

GERBER Spotting Scope 20-60x80mm

Table top tripod  + mobile phone adaptor for taking photos

The GERBER 20-60x80mm is one of the most unique spotting scopes in the market. Economical and compact, it offers high magnifications in a 45 degree eyepiece design. The rubber armoured exterior is both, attractive and durable. The mini table-top tripod collapses flat for easy storage. A smooth focus provides crystal clear viewing, and the included carry case stores & protects the Scope when not in use.

• Coated optics
• Rubber armoured
• Includes the following: Table-top tripod, Carrying case, Lens cleaning cloth, Smart Phone Adaptor
  

Specifications

New Swarovski ST Balance Spotting Scope

• Shake-Free Image Stabilization – rock-solid views, even at high magnification 
• Instant Clarity – stabilized image the moment you lift it, no setup required 
• True Handheld Freedom – observe without a tripod or additional gear 
• Legendary SWAROVSKI OPTIK Clarity – unparalleled detail and color fidelity 
• Lightweight and Compact – ideal for moving fast 
• Effortless Use – intuitive handling with one-button operation 

With the AT Balance from SWAROVSKI OPTIK, you don’t have to choose between speed and precision. Our cutting-edge image stabilization delivers razor-sharp views — instantly and effortlessly. The AT Balance gives you handheld clarity, without the shake. No setup. No hesitation. Just steady, sharp, unshakeable vision — every time.

No Shake. No Doubt. No Hesitation.

A shape stands still at the edge of the clearing. Just far enough that details blur, just close enough that you know it’s something worth seeing. But by the time you set up your scope, it’s gone. Shaky hands. Unstable images. That moment – lost.  You shouldn’t have to choose between precision and speed. Between clarity and convenience. With the AT/ST Balance you don’t have to. You can be in the moment without missing it. You can lock in – fast.

No tripod. No setup. Just instant clarity. 

Sharp. Steady. Unstoppable.

What if you never missed the moment again? With the AT/ST Balance from SWAROVSKI OPTIK, you don’t have to choose between speed and precision. Our cutting-edge image stabilization delivers razor-sharp views — instantly and effortlessly. Whether you want to to see the crucial details on a distant bird or just confirm an ID, the AT/ST Balance gives you handheld clarity, without the shake.

ST BALANCE

The ST Balance 50 pairs an ergonomic, weight-optimized design with an impressive field of view for maximum situational awareness.

No setup. No hesitation. Just steady, sharp, unshakeable vision — every time.

Steady Vision.

Anywhere, Anytime
With advanced Shake-Free Image Stabilization, the AT/ST Balance keeps your view perfectly stable — even at high magnification or in challenging conditions. At the heart of the AT/ST Balance lies SWAROVSKI OPTIK's renowned optical excellence.

Instant Clarity.

Immediate Action.
Nature doesn’t wait — and neither should you. The AT/ST Balance delivers sharp, stabilized images the moment you raise it, without the need for setup or adjustment.

True Handheld Freedom.

Lightweight Control.
No tripod. No extra weight. No restrictions. The AT/ST Balance is designed for effortless handheld use – giving you the freedom to move, react, and stay in the moment without compromising stability or image quality.

SWAROBALANCE

New standards in observation quality.
The precise alignment of sensors, motors, and optical as well as mechanical components ensures an extremely natural and comfortable viewing experience – even in motion. More than one thousand measurements per second continuously adjust the lens position, compensating instantly for even the slightest hand movements. The result is image stabilization with exceptionally low latency, delivering a steady, clear view without distracting after-effects. SWAROBALANCE defines new standards in observation quality. 

Specifications

New Swarovski AT Balance Spotting Scope

• Shake-Free Image Stabilization – rock-solid views, even at high magnification 
• Instant Clarity – stabilized image the moment you lift it, no setup required 
• True Handheld Freedom – observe without a tripod or additional gear 
• Legendary SWAROVSKI OPTIK Clarity – unparalleled detail and color fidelity 
• Lightweight and Compact – ideal for moving fast 
• Effortless Use – intuitive handling with one-button operation 

With the AT Balance from SWAROVSKI OPTIK, you don’t have to choose between speed and precision. Our cutting-edge image stabilization delivers razor-sharp views — instantly and effortlessly. The AT Balance gives you handheld clarity, without the shake. No setup. No hesitation. Just steady, sharp, unshakeable vision — every time.

No Shake. No Doubt. No Hesitation.

A shape stands still at the edge of the clearing. Just far enough that details blur, just close enough that you know it’s something worth seeing. But by the time you set up your scope, it’s gone. Shaky hands. Unstable images. That moment – lost.  You shouldn’t have to choose between precision and speed. Between clarity and convenience. With the AT/ST Balance you don’t have to. You can be in the moment without missing it. You can lock in – fast.

No tripod. No setup. Just instant clarity. 

Sharp. Steady. Unstoppable.

What if you never missed the moment again? With the AT/ST Balance from SWAROVSKI OPTIK, you don’t have to choose between speed and precision. Our cutting-edge image stabilization delivers razor-sharp views — instantly and effortlessly. Whether you want to to see the crucial details on a distant bird or just confirm an ID, the AT/ST Balance gives you handheld clarity, without the shake.

AT BALANCE

The AT Balance 65 combines precise detail recognition and high magnification with perfect handheld ergonomics.

No setup. No hesitation. Just steady, sharp, unshakeable vision — every time.

Steady Vision.

Anywhere, Anytime
With advanced Shake-Free Image Stabilization, the AT/ST Balance keeps your view perfectly stable — even at high magnification or in challenging conditions. At the heart of the AT/ST Balance lies SWAROVSKI OPTIK's renowned optical excellence.

Instant Clarity.

Immediate Action.
Nature doesn’t wait — and neither should you. The AT/ST Balance delivers sharp, stabilized images the moment you raise it, without the need for setup or adjustment.

True Handheld Freedom.

Lightweight Control.
No tripod. No extra weight. No restrictions. The AT/ST Balance is designed for effortless handheld use – giving you the freedom to move, react, and stay in the moment without compromising stability or image quality.

SWAROBALANCE

New standards in observation quality.
The precise alignment of sensors, motors, and optical as well as mechanical components ensures an extremely natural and comfortable viewing experience – even in motion. More than one thousand measurements per second continuously adjust the lens position, compensating instantly for even the slightest hand movements. The result is image stabilization with exceptionally low latency, delivering a steady, clear view without distracting after-effects. SWAROBALANCE defines new standards in observation quality. 

Specifications

Exit pupil diameter

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?

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.

Optolong L2 Dual-Combo Filter Set

The Optolong L2 Dual-Combo Set includes two premium dual-narrowband filters, L-eXtreme and L-Synergy, designed for colour-camera astrophotography. Compatible with telescopes f/3.3 and slower, this set allows users to capture Hubble Palette deep-sky images without switching to a monochrome camera or buying a full three-filter SHO set. It provides professional-level narrowband imaging with minimal investment.

The L-eXtreme transmits OIII (500.7 nm) and Hα (656.3 nm), blocking unwanted light-pollution wavelengths to deliver bright nebula details with high contrast. Years of refinement optimise performance and reduce bright star halos.

The L-Synergy transmits OIII (500.7 nm) and SII (672.4 nm) with high efficiency while rejecting other wavelengths. It minimises light pollution effects and preserves nebula detail, producing clean data for processing.

The combination of these filters allows colour-camera users to achieve Hubble Palette imaging efficiently. It enhances nebula structure, improves contrast, and enables richer colour separation in light-polluted skies.

The filters are engineered to preserve the distinctive colours of nebulae while filtering out most light pollution. Their tuned transmission profiles ensure strong signal in the target emission lines and high signal-to-noise performance for detailed deep-sky images.

This set is ideal for astrophotographers using colour cameras who want professional-quality narrowband imaging with existing equipment.

The GPO PASSION™ 20-60×85 APO delivers professional-grade optics for serious observers. Its 85 mm objective and angled eyepiece design support extended viewing sessions without fatigue. The APO lens system, featuring ED glass and aspherical elements—combined with GPObright™ multi-layer coatings and dielectric prism technology produces exceptionally sharp, high-contrast images with minimal colour fringing across the entire zoom range. A generous exit pupil ensures bright, clear performance in low-light conditions and at dusk. The wide field of view and short close focus make target acquisition swift and precise, making this spotting scope ideal for ornithology, wildlife observation, and digiscoping applications where optical excellence matters.

The GPO PASSION™ 16-48×65 APO delivers professional-grade optics in a remarkably compact package. Its 16–48× magnification range and 65 mm objective lens provide exceptional clarity across varied viewing distances, while the APO design minimises chromatic aberration for pristine image quality. Nitrogen-filled and fully waterproof, this scope withstands demanding field conditions. The magnesium housing with ArmorX grip ensures durability and confident handling, whilst the integrated tripod adapter simplifies setup. At its class weight, it's ideal for mobile observers who refuse to compromise on performance. Includes stay-on carrying case.