
ZWO ASI6200 Pro USB3.0 Cooled Colour Astronomy Camera
The ZWO ASI6200 Pro USB3.0 Cooled Colour Astronomy Camera (Upgraded Version of the ZWO ASI6200MC Pro) is a full-frame colour astronomy camera featuring Sony’s 62MP IMX455 sensor, ultra-low read noise, 16-bit ADC, and enhanced internal electronics—ideal for high-resolution deep-sky imaging.
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New Release Upgraded ZWO ASI 6200 Pro Colour Camera!
The ZWO ASI6200 Pro USB3.0 Cooled Colour Astronomy Camera, or ZWO ASI 6200 Pro Colour, (previously ZWO ASI 6200MC Pro) is the latest version of ZWO’s flagship full-frame astrophotography camera. The upgraded ZWO ASI6200MC Pro is a professional-grade colour astronomy camera that now features a refined matte finish and a redesigned internal board for improved stability and imaging performance. It remains one of ZWO’s lightest full-frame cooled cameras at just 700 grams, making it ideal for portable imaging setups without compromising capability.True to its original design, the ASI 6200 Pro features the same powerful Sony IMX455 full-frame monochrome sensor with 62MP resolution and a 3.76μm pixel size. The 3.76μm pixel size strikes a balance between sharp resolution and sensitivity, ideal for capturing wide-field deep-sky targets with stunning detail. This sensor also eliminates amp glow, allowing for clean long-exposure images without unwanted signal artefacts.

With a massive 62-megapixel resolution and small 3.76μm pixels, the ASI6200 Pro is capable of producing extremely detailed and sharp images. The fine pixel scale is well-suited to high-resolution imaging and allows for precise sampling of intricate features, whether you're targeting distant galaxies or lunar details. This combination of high resolution and small pixel size enables outstanding image quality across the entire frame.
The camera features a true 16-bit ADC, offering a wide 14-stop dynamic range. This enables the ASI6200MC Pro to capture subtle gradients in faint nebulae while preserving the highlight detail in bright stars. It delivers sharp contrast and accurate tonal transitions, even in high dynamic scenes. The dynamic range performance is consistent across gain settings, and the camera automatically enables HCG (High Conversion Gain) mode at Gain 100. This feature reduces read noise significantly while retaining maximum dynamic range—ideal for deep-sky imaging.

Camera Performance
The ASI6200MC Pro offers exceptionally low read noise, ranging from just 1.2e to 3.5e depending on your settings. This low noise performance enables astrophotographers to capture faint details even in shorter exposures, helping to minimise reliance on heavy stacking or complex calibration routines. Its two-stage thermoelectric cooling system (TEC) achieves a temperature differential of up to 35°C below ambient, significantly reducing thermal noise during long-exposure imaging. A built-in 512MB DDR3 buffer ensures stable data transfer and helps prevent dropped frames during large image captures. With a rolling shutter and a peak quantum efficiency (QE) of 80%, the camera effectively gathers light across the visible spectrum for high sensitivity and image clarity. The generous full well capacity of 51,400e supports smooth tonal gradations in bright areas, reducing the risk of overexposure or highlight clipping.

ZWO recommends using either Gain 0 or Gain 100 when capturing deep-sky targets to take full advantage of the camera’s performance. Thanks to its full-frame format and extremely low read noise, the ZWO ASI6200 Pro is equally suitable for planetary imaging, making it one of the most versatile high-end cameras on the market today.

Zero Amp Glow
Thanks to its back-illuminated sensor design and optimised electronics, the ASI6200 Pro produces no amp glow, even with long exposures or high gain settings. Combined with its extremely low read noise, this results in cleaner images with less post-processing required. It's a crucial advantage for astrophotographers aiming for high-quality, low-noise results in both narrowband and broadband imaging.



The ASI6200MC Pro connects via a fast USB 3.0 interface and uses a standard M54 x 0.75 thread, making it easy to integrate with filter wheels, adapters, and other components. Its 6.5mm back focus provides the versatility needed for precise optical configurations across a variety of imaging setups.
Specifications
| Type | Monochrome |
| Sensor Type | IMX455 |
| Sensor Size | 36x24mm |
| Pixel Size | 3.76 μm |
| Read Noise | 0.86-3.3e |
| Resolution | 62MP (9576x6388) |
| Max Framerate | 6.3 FPS |
| Zero Amp Glow? | Yes |
| Delta T | 35°C below ambient |
| Memory Buffer | 512MB DDR3 |
| Shutter | Rolling Shutter |
| QE Peak | 80% |
| Full Well | 51,400e |
| Back Focus | 6.5mm |
| ADC | 16-bit |
| Exposure Range | 32μs-2000s |
| USB | 3.0 |
| Adapter | M54 X 0.75 |
| Weight | 700 g |
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About ZWO Optical
Astrophotography has never been easier.
Established in 2011, ZWO Optical is a fast-growing global astroimaging camera powerhouse based in Suzhou China. They focus on building and innovating ground-breaking CMOS cameras such as the iconic ZWO ASI120MM Monochrome CMOS camera (the first-ever planetary CMOS camera to beat a CCD in the early 2010s). ZWO continues to pioneer new astrophotography technology with revolutionary features to capture exceptional quality of images of space that will last you a lifetime. Today, ZWO cameras are recognised by every passionate astrophotographer and are available in over 25 countries internationally.
Product code: ASI6200MC-P25
| Product Flag | New |
|---|---|
| Colour / Monochrome | Colour |
| Sensor Type | IMX455 |
| Sensor Size | 36x24mm |
| Resolution | 62MP (9576x6388) |
| Pixel Size | 3.76 μm |
| ADC | 16-bit |
| Read Noise | 0.86-3.3e |
| USB | 3.0 |
| FPS | 6.3 FPS |
| Shutter | Rolling Shutter |
| QE Peak | 80% |
| Full Well | 51.4Ke |
| Exposure Range | 32μs-2000s |
| Back Focus | 17.5mm |
| Power | 12V 5A DC |
| Cooling Temperature | -30°C—35°C |
| Cooled? | No |
| Working Temperature | -5°C—45°C |
| Storage Temperature | -20°C—60°C |
| Humidity | 20%—80% |
| Usage | Deep Sky Imaging |
| Camera Weight | 700g |
Q1. What is the standard backfocus distance for ZWO cameras?
All ZWO cameras have a standard backfocus of 55mm. This matches the optical design of most flatteners and reducers. Always check your reducer/flattener manual to confirm the required distance.
Q2. How do I achieve 55mm backfocus with a ZWO cooled camera?
Start with the camera sensor to flange distance, typically 17.5mm, then add spacers and accessories to reach 55mm total. For example: 17.5mm (camera), 21mm (M42 extension ring) or filter drawer, 16.5mm (M42-M48 adapter or OAG). This gives a total of 55mm.
Q3. How do I calculate backfocus when using a ZWO filter wheel?
ZWO’s 5 Position 1.25"/31mm/36mm filter wheels and filter drawers add 20mm-21mm of backfocus.
For a typical setup: 17.5mm (camera), 20mm (filter wheel), 16.5mm (M42 extension or adapter) for a Total = 54–55mm.
Q4. How do I set backfocus when using a ZWO OAG (Off-Axis Guider)?
The ZWO OAG adds about 16.5mm of backfocus. A sample setup might look like: 17.5mm (camera) + 16.5mm (OAG) +21mm (extension ring) Total = 55mm.
Note: The OAG prism needs to be aligned with the sensor for proper guiding.
Q5. How do filters affect backfocus with ZWO cameras?
Filters, especially in a filter drawer or wheel, shift focus slightly—typically 1/3 the thickness of the filter. For a 2mm thick filter, this means reducing the backfocus by about 0.66mm. ZWO already accounts for this in their 55mm recommendation, assuming standard filters are used.
Q6. What if my stars look distorted at the edges—could it be a backfocus issue?
Yes, coma, elongated stars, or blurry edges are common signs of incorrect backfocus. Double-check each spacer’s thickness, make sure components are properly threaded, and measure the total optical path to ensure it equals the required backfocus.
Q7. Do ZWO planetary and guide cameras require a backfocus setup?
No, uncooled ZWO planetary or guide cameras (e.g. ASI178MM, ASI662MC, ASI174MM Mini) are usually connected directly via 1.25" nosepiece and don’t require backfocus spacing unless used with optics (e.g. OAG or Barlow). They are focused by adjusting position in the focuser or OAG helical focuser.
Q8. What software can I use with my ASI camera?
The ASI Caemra range is compatible with a wide range of astrophotography software. You can use:
ZWO ASIAIR for a mobile-friendly, all-in-one imaging solution (requires ASIAIR Plus sold separtely), ZWO’s native Windows/Mac drivers with ASIStudio, third-party software such as NINA, SharpCap, APT, Sequence Generator Pro, and FireCapture, using ZWO’s ASCOM and native SDK drivers.
Make sure your software is updated to the latest version to ensure full support for this full-frame camera.
Q9. Does the ZWO ASI Cameras work with ASIAIR?
Yes, ASI cameras is fully supported by ASIAIR. You can control cooling (for cooled cameras), gain, offset, exposures, filters (if connected via EFW), and guiding through the ASIAIR mobile app. Be sure to keep ASIAIR firmware and the app itself updated for best compatibility.
Q10. What is the recommended gain and offset setting for the ASI cooled cameras?
This varies by target and sky conditions, but ZWO recommends:
Gain 100 for optimal dynamic range and low read noise
Gain 0 for maximum dynamic range in bright targets or longer exposures
Offset typically ranges from 30–50 but should be adjusted depending on your software and histogram.
Q11. Can I use my ASI Camera with a DSLR lens?
Yes, you may be able to use your ASI Camera with DSLR lenses using appropriate ZWO lens adapters (e.g. M54 to Canon EF/Nikon F). You will need to ensure proper backfocus and may need a manual or electronic lens controller for aperture/focus adjustments.
Q12. My software doesn't recognise my camera – what should I do?
Try the following:
- Install the latest ZWO native and ASCOM drivers.
- Check your USB 3.0 cable and port; use a powered hub if needed.
- Test connectivity with an alternative app like ASIStudio.
- Update your software or firmware (e.g. ASIAIR, NINA).






















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