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ZWO ASI2600MM Pro Monochrome Astronomy CMOS Camera

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ZWO
0748305559419
SKU
ZWO-ASI2600MM-P

The ZWO ASI2600MM Pro Monochrome Astronomy CMOS Camera boasts a 26MP Sony IMX571 APS-C sensor, 14 stops dynamic range, and 1.0e read noise for exceptional astrophotography. Features include zero amp glow, advanced two-stage TEC cooling, anti-dew technology, and a compact 700g design. Ideal for deep-sky imaging, it delivers unparalleled detail and minimal noise.

OUR PRICE $3,549.00

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    The ZWO ASI2600MM Pro is built around Sony’s back-illuminated ExMor IMX571 APS-C sensor. It delivers a peak quantum efficiency (QE) of up to 80%, supports a native 16-bit depth, and offers an impressive 14 stops of dynamic range with an ultra-low 1.0e readout noise.

    ZWO ASI2600MM Pro Monochrome Astronomy CMOS Camera - Specifications

    Features

    • 26MP resolution (6248x4176)

    • 3.76um pixel size

    • Back illuminated Sony IMX571 CMOS Sensor

    • Zero amp glow

    • 14 stop dynamic range

    • 16 bit ADC sensor

     

    Just like its colour counterpart, the ASI2600MM Pro is surprisingly lightweight at only 700 grams. The APS-C sensor measures 23.5mm x 15.7mm, giving it a diagonal of 28.3mm. Sony’s back-illuminated CMOS design enhances light sensitivity, cuts down on noise and power use, and improves data transfer speeds. Unlike traditional front-illuminated sensors—where wiring and transistors block some of the light—back-illuminated sensors place the light-sensitive area above the circuitry. This layout allows more light to reach the photodiodes, increasing quantum efficiency. Sony further boosts performance with a unique photodiode design and an on-chip lens system, improving sensitivity and reducing random noise even further.

    ASI2600MM Pro Sensor

    The 16-bit analog-to-digital converter (ADC) in the ASI2600MM Pro delivers a dynamic range of 14 stops, greatly enhancing image detail, contrast, and the smoothness of tonal transitions.

    ZWO 2600MM Pro Astronomy Camera Performance Graph

    ZWO equips the ASI2600MM Pro with a 256MB DDR3 memory buffer, which helps stabilise data transfer and eliminates amp glow caused by slow readouts. The USB 3.0 interface provides a high-speed 5Gbps bandwidth, enabling the camera to capture up to 3.51 frames per second at its full 26MP resolution.

    A built-in USB 2.0 hub allows connection of up to two accessories—like an electronic filter wheel, guide camera, or focuser—helping you simplify your cable setup by reducing the number of leads running to your PC.

    The camera also features a two-stage TEC cooling system, capable of achieving a ΔT of 35°C below ambient air temperature.
    Important: All cooled ZWO cameras must be powered by an external 12V supply (3–5A) with a 2.1×5.5 mm positive-tip connector.

    This astronomy camera is fitted with a 5W polyimid heater that covers the protective window. It prevents dew or ice forming on the camera, allowing you to image in colder environments.

    Quantum Efficiency 

    The ZWO ASI2600MM Pro has a QE value of 91%

    Cooling system

    The two stage TEC cooling system can lower th CMOS sensor temperature to more than 35℃ below ambient temperature. This reduces dark current generation and sesnor noise level during extended exposures. It is also equipped with unique dark current supression technology that further reduces dark current noise.  a temperature of 0 °C, the dark current noise is as low as 0.0022 electrons per second per pixel. This implies that a 300-second exposure would result in just 0.7 electrons of dark current noise, which is lower than the readout noise. Furthermore, when the temperature is lowered to -20 °C, the dark current drops even further to 0.00012 electrons per second per pixel.

     

    Zero amp glow

    The ZWO ASI2600MM Pro' s sensor does not produce a weak infrared light source thats seen in traditional CMOS sensors. Hence, he sensor's cirtuitry allows you to conduct high gain, long exposure imaging with no amp glow. 

    Zero Amp Glow

    Specifications

    Type Monochrome
    Sensor Type IMX571
    Sensor Size 23.5x15.7mm
    Pixel Size 3.76 μm
    Format APS-C (6248x4176)
    Read Noise 1.0e-3.3e
    Resolution 26 MP (6248x4176)
    Max Framerate 12.8 FPS 
    Zero Amp Glow Yes
    Delta T 35°C below ambient
    Memory Buffer 512MB DDR3
    Shutter Rolling Shutter
    QE Peak 91%
    Full Well 50,000e
    Back Focus 17.5mm
    ADC 16-bit
    Exposure Range 32us-2000s
    Protecting window D60 2" AR Coated
    USB 3.0
    Adapter M42 X 0.75
    Weight 700 g

    Camera Connection

    55mm Back Focus Solution

    Camera Connections

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    ZWO 12V 5A Power Adapter for Cooled Cameras ZWO 12V 5A Power Adapter for Cooled Cameras
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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 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: ZWO-ASI2600MM-P

    More Information
    Colour / MonochromeMonochrome
    Sensor TypeIMX571
    Sensor SizeAPS-C
    Resolution26MP (6248*4176)
    Pixel Size3.76µm
    ADC16bit
    Read Noise1.0-3.3e
    USBUSB3.0
    FPS3.51FPS
    ShutterRolling Shutter
    QE Peak91%
    Full Well50000e
    Exposure Range32μs-2000s
    Back Focus17.5mm
    Power12V 5A DC
    Operating System CompatibilityWindows, Mac OSX, Linux
    Cooling Temperature-35C
    Cooled?Yes
    Working Temperature-5°C—50°C
    Storage Temperature-10°C—60°C
    Humidity0%—80%
    UsagePlanetary Imaging, Deep Sky Imaging
    Camera Weight700g
    Warranty Information2 Years
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    Image Item Qty
    Camera Body 1
    Camera Bag 1
    USB2.0 Cables (0.5m) 2
    Quick Guide 1
    USB3.0 Cable (2m) 1
    USB3.0 Cable (0.75m) 1
    M54M-M54F
    (16.5mm)
    1
    M54M -M54F
    (21mm)
    1
    M54M-M48F 1
    Hexagon Wrench 1

    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 the position in the focuser or OAG helical focuser.

     

    Q8. What software can I use with my ASI camera?

    The ASI Camera 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).