Kite APC 42 Full Black

High powered binocular viewing without the need for a tripod

New from FUJINON: High-magnification image-stabilized binoculars equipped with ED lenses, allowing for brighter and clearer observation of distant objects.

Higher magnification binoculars often need a tripod to avoid the hand movements and shakes while trying to hold them still. Taking a tripod into the field can be tricky, especially for bird watching in the distance or species identification where higher powers are needed.

FUJINON TECHNO-STABI Binoculars use latest image stabilising technology to provide steady, shake-free viewing without a tripod even in the harshest of conditions.

Key Features

Ideal for:
Marine Sports/Safari Tour, Stargazing/Nature, Professional Observation/Surveillance.

Magnification
16

Objective diameter (mm)
40

Field of view
4.2

Apparent field of view *1
185.5

Width (mm)
122

Depth (mm)
72

Weight without battery (g)
856

Water Resistant *2
1m for 30min (IPX7)

Operating Temperature 
-10℃～+50℃

1. Apparent field of view based on ISO14132-1:2002
2. Does not mean it can be used in water.

Fujinon TECHNO-STABI binoculars brings the latest tech to stabilise and correct images.

Image High power doesn't need to mean shaky views.

If you've ever needed to hand hold higher power binoculars, you'll know hard it is to keep them steady, especially for long periods of time. It's even hard on a bumpy surface or on a boat. Now with the Fujinon TECHNO-STABI binoculars from BINTEL, forget for the shakes and enjoy the views!

You'll get to see high-power 12 times magnification views of birds, nature, sports, and concerts without the need for a tripod. Get in close but without the handshaking that sometime accompanies higher magnification.

The prism in the gimbal system is constantly stabilized when the electronic gyro sensor detects vibration, providing vibration correction at a wider range of angles than any other system. Views through the Fujinon TECHNO-STABI binoculars will be much steadier and clearer when you're on the go or need to follow a moving object.

Waterproof and dustproof

They're also a perfect companion for boating - the image stabilisation keeps distant view in focus even with the deck rocking under your feet during bumpy conditions. A bit of a splash or even if they fall into water won't harm Fujinon TECHNO-STABI binoculars.

Long life battery power

Fujinon TECHNO-STABI binoculars run for hours on end off either standard AA batteries that can find anywhere or rechargeable batteries. If the batteries go flat, you can still use the binoculars. It's just the image stabilisation that stops working.

Specifications

• *1 Apparent field of view based on ISO14132-1:2002
• *2 MOD may differ depends on the viewer's sight in case of Individual focus.
• *3 Do not mean it can be used in water.

Farpoint Dew Shield - Celestron 4/4SE SCT is a virtually indestructible cover customized for Celestron 4/4SE SCT telescopes. Simply attach the flexible cover to the front of the optical tube to prevent moisture build-up on the lens. Made with tough, flexible ABS plastic and lined with black felt to cut down the reflection and prevent sliding onto the telescope corrector plate.

Protects delicate optical equipment and allows for moisture-free observing sessions.

When you are out on the field, make sure that your night-long set up is not interrupted by dew on your optics.

Farpoint Dew Shields and Dew Heaters are part of a perfect series of preventative measures you can take to make sure that your setup is prepared for the journey ahead. Our Shields are made with ABS polymer and proud to be made in USA.

Specifications

Features

What's In The Box

• Rainguard Eyepiece Cover
• Comfort Neck Strap
• Carry Case
• Lens Cloth

Warranty

VIP stands for a Very Important Promise to you, our customer. We will repair or replace your Vortex® product in the event it becomes damaged or defective—at no charge to you. If we cannot repair your product, we will replace it with a product in perfect working order of equal or better physical condition.

You see, it doesn't matter how it happened, whose fault it was or where you purchased it. If you ever have a problem, no matter the cause, we promise to take care of you. You can count on the VIP Warranty for all Vortex Optics riflescopes, prism scopes, red dots, rangefinders, binoculars, spotting scopes, tripods and monoculars.

• UNLIMITED LIFETIME WARRANTY
• FULLY TRANSFERABLE
• NO RECEIPT NEEDED

The VIP Warranty does not cover loss, theft, deliberate damage or cosmetic damage that does not hinder the performance of the product.

Farpoint Bahtinov Mask RASA 8" designed for the Celestron 8 inch RASA telescope, is an ingenious way to easily focus a telescope. Pavel Bahtinov, a Russian amateur telescope maker and astronomer, created this simple, very intuitive method and the device has universally been named after him: The Bahtinov Mask.

Farpoint Bahtinov Mask RASA 8"

Farpoint Bahtinov Mask RASA 8" is an ingenious way to easily focus a telescope. Pavel Bahtinov, a Russian amateur telescope maker and astronomer, created this simple, very intuitive method and the device has universally been named after him: The Bahtinov Mask.

Attach a camera to the telescope, center a fairly bright star and achieve rough focus. Then place the mask over the front aperture of your telescope by “hanging” it on the plastic screws from the front dew shield. Take a short exposure. The image of the star will show diffraction spikes. The “center” set will most likely be shifted to one side or the other. This is showing the defocus.

Adjust the focus of the telescope and re-expose the star, once again showing the diffraction spike pattern. Iterate the process until the central diffraction spike is centered against the star and the other spikes. When a symmetrical pattern is achieved, the best possible focus is then reached. Simply remove the mask, center the target object and take amazing, sharp images!

Farpoint manufactures this "lifesaving" astrophotography tool out of virtually indestructible ABS plastic, which comes in two major types and in a range of sizes. In addition to Bahtinov masks for telescopes, Farpoint also makes Bahtinov masks for DSLR camera lenses.

Farpoint Bahtinov Masks Are one of the best tools for manually focusing your telescope available to astrophotographers. In 2005, Pavel Bahtinov, a Russian amateur telescope maker and astronomer detailed a way to easily focus your DSLR, CMOS or CCD camera for astrophotography by adding a mask that matches the diameter of your telescope.

Bahtinov mask are a less expensive method of getting focus on objects in the night sky compared to a standard motor focuser.

With the right mask and setup it’s easy to get crystal clear focus on a star in less than 90 seconds.

How it works

The slits in the mask are the focus assist, when the star is in focus it will appear on your screen display as an “X” with a line through the center (see above).

These masks will work equally as well on the end of a scope or on the end of a dew shield on top of that the mask itself does not need to be perfected centered on the scope this is due to the angle of the slits themselves.

Select a bright star, this will be your guiding object. Place the Bahtinov focusing mask on your telescope’s lens and secure it into place using the provided rubber tabs.

The slits in the mask design create a set of diffraction spikes on the star that will assist in the accuracy of our focus. It will appear on your DSLR display screen or computer as an “X” with a line through the center (when in focus).

SKU: FP410-R

The KOWA TSN-82SV Series Spotting Scope is a premium optical instrument designed for those who demand exceptional performance in a variety of outdoor conditions. With its 82mm objective lens, this spotting scope offers outstanding light-gathering power, allowing for bright and clear views even in low-light environments. The large objective lens enables users to capture sharp, detailed images across vast distances, making it ideal for birdwatching, hunting, or other outdoor observation activities.

A standout feature of the KOWA TSN-82SV is its fully multicoated lenses and prisms, which enhance image quality by reducing reflections and improving light transmission. This advanced coating technology ensures exceptional clarity and brightness, giving users a crisp, sharp visual range and allowing them to see fine details even in challenging lighting conditions.

In addition to the impressive optical performance, the spotting scope's housing is waterproof and built to withstand tough environments. It adheres to JIS protection class 7 standards, meaning it is protected against the effects of temporary immersion in water. Whether you're out in a rainstorm or near a body of water, the KOWA TSN-82SV will continue to perform without compromising on its optical capabilities.

To further enhance durability and usability, the spotting scope is filled with dry nitrogen gas, which helps prevent internal fogging on the lenses, ensuring that the view remains clear and unobstructed even when the weather is humid or temperature fluctuations occur. This feature makes it especially suitable for use in various climates, from hot and humid conditions to cold, snowy environments.

The KOWA TSN-82SV Series Spotting Scope is built to offer a combination of reliability, clarity, and durability, making it an excellent choice for serious outdoor enthusiasts and professionals who require top-tier performance in all conditions. Whether you're spotting wildlife at a distance or focusing on distant landscape features, this scope will provide you with the tools you need to observe with precision and comfort.

Take a tour of the night sky and the wonders of the Universe with this fascinating guide. Look up to the stars and observe the wonders of outer space with this beautifully illustrated, inspirational, and accessible introduction to astronomy.

Visit other planets in our solar system, steer a course through the constellations, and head away from our galaxy to unlock the secrets of interstellar space.

Take a tour of the night sky and the wonders of the Universe with Astronomy for Curious Kids. Travel through time and space from the Big Bang to black holes, and study solar eclipses, shooting stars, supergiants and supernovas for a journey that is literally out of this world. 

• Beautifully illustrated, accessible guide to the world of astronomy
• Explains how stars are born and how they die
• Learn how to navigate the night sky using constellations
• Explores the Big Bang, black holes, solar eclipses, shooting stars, supergiants, and supernovas
• Discover the Milky Way and the solar system

What's inside

Welcome to Astronomy
Chapter 1: How to Be an Astronomer
Chapter 2: the Story of Astronomy
Chapter 3: Discovering the Solar System
Chapter 4: Secrets of the Stars
Chapter 5: the Milky Way and Beyond
Chapter 6: the Story of the Universe
Glossary
Index

Reading level varies from child to child, but we recommend this book for ages 8 to 12.

Authors

Giles Sparrow is a freelance author and editor, specializing in popular science, astronomy, and space technology. He studied astronomy at University College, London, and is a Fellow of the Royal Astronomical Society. He has gone on to have books about space published by many esteemed children’s publishers.

Nik Neves is a Brazilian graphic artist, illustrator, and comic author specializing in illustrated maps, sketchbooks, visual diaries, and music. Nik works with clients across the globe and regularly contributes to international publications including Lonely Planet, National Geographic, and Arte Magazine. He lives and works in Berli

ISBN: 9781486318384 | 128 pages | 280 x 225 mm
Publisher: CSIRO Publishing
Colour illustrations

Pentax's highly portable and functional U-Series UP Compact Binocular employs an innovative unibody design that locks the objective lenses into the body with the eyepieces set on a synchronized dual-axis mechanism that ensures they stay symmetrical in relation to the center axis of the optic when adjusting the interpupillary distance. The 25mm objective lenses are fully multicoated to reduce reflection and maximize light transmission to produce the brightest images possible. Aspherical lens elements virtually eliminate distortion, especially around the edges, and corrects for lens astigmatism which can prevent sharp focusing.

Designed for easy carrying and stowing, the binocular features a lightweight fiberglass reinforced polycarbonate housing that is corrosion and impact resistant. The housing material is also temperature-resistant allowing for its use in extreme climates while reducing expansion and contraction wide temperature variations can cause, which can make the optical components move out of collimation over time.

Optical Performance

• 10x magnification
• 25mm objective lenses
• BAK4 porro-prism optical design
• Aspherical lens elements reduce distortion at the edges and corrects for lens astigmatism which can prevent sharp focusing
• Anti-reflection fully multicoated optics
• 325.5' field of view at 1000 yards
• 50° angle of view

Use and Handling

• Dual-axis synchronized eyepiece adjustment ensures symmetrical placement when changing interpupillary distances
• Knurled center focus wheel
• Twist-up eyecups for use with or without eye wear
• 15mm eye relief, 3.1mm exit pupil
• Standard 1/4"-20 tripod mount

Construction Details

• Lightweight fiberglass reinforced polycarbonate housing
• Housing is corrosion, temperature and impact-resistant
• Rubberized armoring protects against impacts and provides slip-resistant grip

Compact, Lightweight, High-Performance Monocular. Provides Single-Hand Focusing Operation.

PENTAX Monocular VM 6×21 WP Monocular Complete Kit provides an easy grip by either hand and features a newly designed focus mechanism to facilitate focus adjustment by the holding hand.

Thanks to a minimum focusing distance of 70 centimeters and a wide focus adjustment range allowing close-range observations, this monocular can be used in a wide range of applications, from magnified views of distant scenery to close-up observations of small objects.

Easy Operation with One Hand

It has a compact and lightweight design that fits in the palm of your hand, and the exterior design uses a non-slip rubber coating that makes it easy to grip with either hand. The seesaw-type focus adjustment mechanism allows you to focus while holding the main unit, so you can use it with peace of mind while walking in the mountains or while carrying luggage in one hand.

.

Wide Range of Ways

By attaching a smartphone using the smartphone adapter "V-SA1", you can not only see powerful images with the naked eye, but also shoot them. Also, if you attach the macro stand "V-MS1" with an LED light, you can use it as a microscope with a close-up lens of about 18x ​​for magnified observation of minute objects. If the object is dark due to the shadow of the monocular during observation, you can observe it while illuminating it brightly with the built-in LED light. In addition, by using it together with the "V-SA1", it is possible to take and save super-close-up images, greatly expanding the scope of use of the main unit.

Features:

Normally available for pickup or shipping approx. 2-3 business days from your order

This dovetail bar kit allows you to replace the wider CGE dovetail bar found on most Celestron 8" Schmidt-Cassegrain and 8" EdgeHD optical tubes with a narrow dovetail, allowing them to be used on mounts that require the narrower CG-5 dovetail bars, such as the Advanced VX mount.

• Fits pre-drilled holes in the front and rear cells of current 8" Schmidt-Cassegrain and 8" EdgeHD Optical tubes
• Aluminum bar with orange anodizing provides a sturdy mounting platform.
• Easy to install and comes complete with all necessary hardware

The Celestron C9.25-A is an unusual size with its 9.25” aperture and 2350 mm focal length, but many consider it to be the Goldilocks of optical tubes—not too big, not too small. This rugged aluminum optical tube is only 558mm long and weighs just 9kgs, making it easy to transport and set up. But the views are much more impressive than what you’d expect from such a compact instrument. The tube offers a focal ratio of f/10 with the added versatility of Fastar (see below).

It is equipped with Celestron’s patented StarBright® XLT optical coatings, which visibly increase contrast and light transmission for brighter deep space images and shorter exposure times. With StarBright XLT, you’ll be able to discern subtle details while viewing the Moon and planets as well as faint galaxies and nebulae.

The Celestron C9.25-A can be mounted on a multitude of computerized telescope mounts thanks to its CGEM-style dovetail bar. This iconic optical tube provides the best balance of portability, handling ease, light gathering ability and price ever offered to the amateur astronomer.

Fastar Technology

In 1997, CCDs were making a name for themselves in the astrophotography world, quickly supplanting traditional film photography thanks to their speed and convenience. This was the year that Celestron joined forces with the Santa Barbara Instruments Group (SBIG) to produce Fastar, a revolutionary add-on to Celestron’s hugely popular Schmidt-Cassegrain (SCT) optical system.

With Fastar, the SCT’s secondary mirror can be removed and replaced with a field-flattening lens assembly (sold separately by third party manufacturers) so that a CCD camera can be used in the front of the telescope at the f/2 focus of the instrument’s primary mirror. The potential of the Fastar system is staggering: exposures are 25 times shorter than if the camera was placed at the instrument’s native f/10 focus. Imagers can capture galaxies and nebulae with exposures of just 30 seconds.

StarBright XLT coatings

StarBright XLT is Celestron’s revolutionary optical coating system. It consistently outperforms all other coatings in the commercial telescope market. There are three major components that make up our StarBright XLT high-transmission optical system design:

• Unique enhanced multi-layer mirror coatings made from precise layers of aluminum, SiO2 (quartz), TiO2 (titanium dioxide), and SiO2 (silicon dioxide). Reflectivity is fairly flat across the spectrum, optimizing it for both imaging and visual observing.
• Multi-layer anti-reflective coatings made from precise layers of MgF2 (magnesium fluoride) and HfO2 (hafnium dioxide). Hafnium—a rare element that costs nearly $2,000 per kilogram—gives us a wider band pass than the titanium used in competing coatings.
• High-transmission water white glass is used instead of soda lime glass for the corrector lens. Water white glass transmits about 90.5% of light without anti-reflective coatings; that’s 3.5% better than uncoated soda lime glass. When water white glass is used in conjunction with StarBright XLT’s anti-reflective coatings, the average transmission reaches an astonishing 97.4.

The Celestron 2” Luminos Barlow Lens increases the magnification of your 2” and 1.25” eyepieces by 2.5x. The premium 4-element apochromatic optics are fully multi-coated for optimum light transmission and yield high contrast, true colour images.

The beautiful hard-anodized aluminum housing matches the eyepieces in the Celestron Luminos line. A centralized rubber grip helps to keep your hands securely on the barrel, even when your fingers are cold or you are wearing gloves. A brass compression ring just inside the top of the Luminos 2.5x Barlow grabs your 2” eyepieces gently but firmly when you turn the oversized thumbscrew. Once the thumbscrew has been secured in place, the brass ring keeps your eyepiece in the Barlow instead of relying on the tip of the thumbscrew itself, offering a better grip and protecting the barrel from scratches. A matching 2” to 1.25” adapter is included so that you can increase the magnification of all of your eyepieces, both 1.25” and 2”, in this versatile Barlow lens.

The insert barrel of the Celestron Luminos 2.5x Barlow is threaded to accept 2” filters. This is a nice feature, because you can change eyepieces without removing and reattaching the filter each time.

Celestron X-Cel LX series eyepieces offer a 60º apparent field of view, perfect for the Moon, the planets, and a plethora of deep-sky objects. The premium six-element optical set is finished with multiple layers of high-transmission coatings for clear, sharp images. The edges of the optics are blackened for increased contrast. All seven X-Cel LX eyepieces sport 16mm of comfortable eye relief, and are parfocal, which means you can switch out eyepieces within the series during observing sessions and little or no additional focusing will be required.

The X-Cel LX eyepiece body is made of black-anodized aluminum. The pop-up eyecups make it easy to adjust the height for different users. Turn them in one direction to extend the length, and the other direction to provide a flat surface, preferable to most eyeglass wearers. A threaded rubber grip around the center of the eyepiece barrel offers secure handling, even in moist conditions or with heavy gloves on. The 1.25” insert barrel is threaded to accept filters.

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The professional-level Celestron TetraView LCD Digital Microscope is a touchscreen LCD microscope with advanced features at a reasonable price. TetraView features four fully achromatic lens objectives, a fully mechanical stage, a 4.3” TFT full color touch screen, 5MP CMOS sensor, and a 2GB SD card for storing your photos and videos. Taking high-resolution images and video of specimen slides has never been easier.

The LCD screen on the TetraView LCD Digital Microscope rotates 180° so you can easily share your viewing with others. For an even bigger audience, use the TV output to display on a television or projector. With magnification from 40 to 400x (1600x with digital zoom), TetraView is ideal for viewing a range of cellular specimens on slides.

Great for the discriminating professional or serious hobbyist, the TetraView microscope is an excellent tool for labs, schools, scientific research, and more.

• 40x to 400x magnification (up to 1600x with digital zoom)
• 4.3" LCD touchscreen
• 5MP CMOS built-in digital camera
• 4 fully achromatic objective lenses: 4x, 10x, 20x, 40x
• Adjustable LED bottom illumination
• 180° rotatable LCD screen
• Fully mechanical stage
• Coarse and fine focus knobs
• Filter wheel/diaphragm
• AV/TV output
• Battery power option (4AA batteries)
• 2GB SD card included (SD card slot supports up to 32GB)
• Universal AC adapter with multi-plugs for international usage
• Accessories included: 7 prepared slides, hard carrying case, dust cover, touch pen, USB cable, AV out cable

• Attach a variety of accessories to your Advanced CG-5 or Advanced VX mount with this Universal Mounting Plate
• Several different mounting holes to choose from to mount rings, spotting scopes, cameras, etc
• Approximately 250mm long

Note: No Hardware screws included

Specifications

23 mm2581 x

ZWO M48 Male to M48 Female Extender 16.5mm

Farpoint Bahtinov Mask - Celestron 9.25 Classic

About Bahtinov Masks

Pavel Bahtinov, a Russian amateur telescope maker and astronomer, created this simple, very intuitive method and the device has universally been named after him: The Bahtinov Mask.

Attach a camera to the telescope, center a fairly bright star and achieve rough focus. Then place the mask over the front aperture of your telescope by “hanging” it on the plastic screws from the front dew shield (Custom fit masks for specific telescopes are also available). Take a short exposure. The image of the star will show diffraction spikes. The “center” spike will most likely be shifted to one side or the other. This is showing the defocus.

Adjust the focus of the telescope and re-expose the star, once again showing the diffraction spike pattern. Iterate the process until the central diffraction spike is centered against the star and the other spikes. When a symmetrical pattern is achieved, the best possible focus has been obtained.  Simply remove the mask, center the target object and take amazing, sharp images!

Farpoint manufactures this "lifesaving" astrophotography tool out of virtually indestructible ABS plastic, which comes in three major types and in a range of sizes. In addition to Bahtinov masks for telescopes, Farpoint also makes Bahtinov masks for DSLR camera lenses.

This is a very handy gizmo is ideal for attaching all sorts of equipment.

Velcro cable supports can be used to secure and tidy cables for the following astronomy items:

• USB astronomy camera cables
• Telescope power and motor cables
• USB power cables for telescopes with smart phone integration
• Guide scope cables
• Electronic focuser cables
• + much more

Please - mounts and accessories shown in the images are not included.

TMB PlanetView Planetary Eyepieces:

The TMB PlanetView Planetary Eyepiece series is designed for high-magnification planetary and lunar observing, delivering sharp, high-contrast views with excellent eye comfort. Choosing the right focal length for your telescope typically provides a significant upgrade in magnification and fine detail compared to the stock eyepieces supplied with most telescopes, making planetary features clearer and easier to observe. Featuring a 5-element optical design and a wide 58° apparent field of view, these eyepieces offer a more immersive experience than traditional narrow-field planetary designs while maintaining the crisp detail needed for serious observing.

Fully multi-coated optics and internal baffling maximise light transmission and suppress stray reflections, improving contrast on subtle planetary features and fine lunar detail. The large eye lens and generous eye relief make these eyepieces comfortable to use, especially during long observing sessions or when wearing glasses.

Built with an all-metal housing and a fold-down rubber eyecup, TMB PlanetView eyepieces are robust, practical, and compatible with all standard 1.25" focusers and filters. They are also Bintel’s number one recommended first upgrade for most telescopes, offering one of the simplest and most noticeable improvements you can make to planetary and lunar performance.

The 9mm TMB PlanetView:

The TMB PlanetView 9mm Planetary Eyepiece is suited to longer focal length Schmidt-Cassegrain telescopes as well as some refractors where slightly longer focal length high magnification eyepieces are preferred.

Works particularly well with:

• • Celestron NexStar 4SE Telescope

  • Celestron NexStar 8SE Telescope

  • Celestron NexStar Evolution 8 Telescope
•  
  • Celestron NexStar Evolution 9.25 Telescope
•  

  • Celestron StarSense Explorer LT80 AZ Refractor Telescope

Specs:

The VENGEANCE 12x50  is for who who want maximum reach and brightness for their outdoor adventures. With high-powered 12x magnification and large 50mm objective lenses, these binoculars are engineered for long-range viewing with enhanced light-gathering power, perfect for long distance bird watching, wildlife spotters, and explorers.

Sealed for all-weather use and built for field abuse, the 12x50 brings distant subjects into sharp focus—day or dusk.

Highlights

• 12x50 Magnification – Ideal blend of power and light collection
• 50mm Objective Lenses – Pulls in more light for dawn, dusk, or cloudy conditions
• Weatherproof Build – Fog-proof and waterproof for all-weather use
• Impact-Resistant Armor – Built tough with sure-grip ergonomics
• Enhanced Brightness & Sharpness – Multi-coated optics for crisp clarity
• Unconditional Lifetime Warranty – Protected for life, no questions asked

Overview

When distance and detail matter most, the VENGEANCE 12x50 binoculars deliver. With 12x magnification and large 50mm objective lenses, they’re perfect for extreme-range viewing. The larger 50mm objective lenses offer enhanced light-gathering power. They make great binoculars for astronomy as well.

Despite their power, they remain balanced and easy to handle, thanks to their well-weighted construction and durable rubber armour. Internally, the multi-coated lens system ensures you maintain brightness and contrast even in marginal light. Fully waterproof and fog-proof, they’re ready to perform in unpredictable outdoor conditions.

Best of all, the VENGEANCE 12x50 rivals the performance of big-brand optics at a significantly better price, offering premium clarity and durability without the premium price tag. If you’re after extreme reach without compromise, this is your solution. 

SPECIFICATIONS

SEE CLEARLY, WHEREVER YOU GO.
The Crossfire® HD series of spotting scopes offers exceptional optical performance and the reliability you expect from Crossfire® optics. With a wide field of view, it's perfect for scanning large areas in any environment. The Arca-Swiss compatible foot ensures quick and easy mounting on most tripods for seamless setup. Featuring a range of magnification options, the Crossfire® HD is versatile enough for a variety of outdoor activities, whether you're observing wildlife, hiking, or exploring distant landscapes. It's the perfect companion for anyone looking for high-quality viewing in the field.

FEATURES

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

ZWO D70-M54F Adapter may be required when fitting the ZWO OAG-L to a 36mm, 31mm /1.25" filter wheel

ZWO M54 Sensor Tilt Plate

Product: ZWO M54 sensor tilt plate adapter

Thickness: 5mm

Suitable for APS-C and full-frame cameras (ASI2600, ASI6200, and ASI2400)

You can connect it to M68 OAG and 2” EFW, and mount them on the M48-thread telescope side with an M54-M48 adapter.

*This adapter is packaged with the full-frame camera. So if you already have one ASI full camera then you don’t need to buy it separately.

SKU: ZWO-M54-Plate

This ZWO adaptor helps you set your camera back spacing correctly for sharp astro images. 

It features a 21m spacer size, with 54mm fitting on the telescope side and 48mm for the camera.

Setting the right back spacing will help your astro imaging rig get the best from your telescope optics.