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ZWO ASI2600MM Pro Mono

by ZWO
Original price $2,699.00 - Original price $2,699.00
Original price
$2,699.00 - $2,699.00
Current price $2,699.00
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  • 28.3mm diagonal 6248 x 4176 APS-C sensor
  • Cooling system with -35°C delta T
  • Peak quantum efficiency (QE) of 91%
  • 3.76μm pixels

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  • Description
  • Specifications
  • In the Box
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  • Explore the night sky with the ZWO ASI2600MM Pro, a premier monochrome astronomy camera designed to deliver stunning astrophotography results. This camera, tailored for both newcomers and seasoned astrophotographers, features an APS-C sensor and advanced cooling technology, making it a powerful tool in your celestial imaging arsenal.


    All ASI cooled cameras require an external power source. We advise using a 12V 3~5A DC adapter (2.1 x 5.5mm, center positive), an 11V-14V lithium battery, or the ASIAIR for powering the camera. Please note that utilizing a power supply outside of this specified voltage range can cause irreversible damage to the camera.

    Sensor Design

    The ASI2600MM Pro uses an APS-C backside illuminated CMOS sensor with 26.1 megapixels at a pixel size of 3.76μm. Its ultra-low 1.0e- readout noise enhances your images by revealing more details and improving the dynamic range. The 16-bit ADC sensor provides a high dynamic range, delivering up to 14 stops!

    This camera produces no amp glow, which can be a common issue in some astrophotography cameras. This feature ensures clean images that require less post-processing.

    This camera offers high quantum efficiency to capture great details even in low light conditions, making it ideal for deep sky imaging.

    Cooling System

    ZWO Camera TEC Cooling

    Integrated with a powerful two-stage TEC cooling system, the ASI2600MM Pro can reduce the CMOS sensor temperature by up to 35°C below ambient, significantly reducing the dark current. Thereby, the improvement in signal to noise ratio (SNR) will result in clearer, sharper images of the deep sky, even with long exposures of hundreds of seconds.

    Versatile Connectivity

    The camera includes many ports for convenient connection of additional equipment like a filter wheel, a guide camera or a motorized focuser.

    • 1x USB3.0 for high speed data transfer
    • 2x USB2.0 ports for additional equipment
    • 1x 12V 2.1 x 5.5mm power port to power the camera

    Backside Illuminated IMX571 Sensor

    Sony's back-illuminated CMOS image sensor enhances sensitivity and noise reduction—crucial aspects for improving image quality. This enhancement is achieved by shifting the fundamental pixel structure from front-illumination to back-illumination, maintaining the benefits of CMOS sensors like low power consumption and rapid processing.

    In traditional front-illuminated sensors, the metal wiring and transistors on the silicon substrate's surface, which make up the light-sensitive area (photo-diode), obstruct the light captured by the on-chip lens. Conversely, a back-illuminated structure reduces sensitivity lossincreases light intake per pixel by relocating these obstructions to the back of the silicon substrate. This modification allows for more direct light entry into each pixel, significantly enhancing overall image quality.

    Native 16 bit ADC

    The ASI2600MM Pro camera stands out as one of the few CMOS astronomy cameras featuring a 16-bit ADC, specifically designed to meet the ideal requirements for astrophotography. Unlike a CCD 16-bit ADC, this camera's 16-bit ADC truly delivers a dynamic range of 14 stops. This extensive range significantly enhances image sharpness and contrast, and also produces smoother, more natural transitions in contrast and color gradients when various filters are applied. This makes the ASI2600MM Pro an exceptional choice for capturing detailed and vivid astronomical images.

    Optical Window Dew Heater

    The ASI2600MM Pro camera features a polyimide heater that perfectly aligns with the protective window, designed to prevent dew or ice formation, which can be a concern depending on the environmental conditions during image capture. This heater has a power output of approximately 5W and can be conveniently turned off at any time through your photography software to conserve power.

    512MB DDRIII Buffer

    The ASI2600MM-P boasts a 512MB DDR3 memory buffer, enhancing performance and efficiency. This buffer accelerates data transfer and processing during image capture, reducing the risk of data loss or corruption. It also alleviates strain on the host computer's resources, ensuring smoother operation and maximizing creative potential during high-speed imaging sessions.

    Low Dark Current

    The ASI2600MM Pro, already featuring a low dark current, demonstrates even further reduced dark current when cooling is utilized. Check the diagram below to view the significant reductions achieved with the cooling system.

    Additionally, the unique dark current suppression technology further diminishes dark current noise. At a cooling temperature of 0°C, the dark current noise measures only 0.0022e/s/pixel, translating to a mere 0.7e dark current noise for a 300-second exposure, which is lower than the readout noise. Moreover, at a cooling temperature of -20°C, the dark current reduces to a negligible 0.00012e/s/pixel, ensuring minimal interference with image quality.

    Please note that the Delta T of 35°C is validated under an ambient temperature of 35°C and may vary with prolonged cooling system operation or changes in ambient temperature.

    Quantum Efficiency

    Based on the calculations, the peak quantum efficiency of the ASI2600MM Pro is of 91%

    Low Read Noise, High Dynamic Range

    Setting the gain value to 100 activates the HCG high gain mode. This adjustment significantly lowers the readout noise without fundamentally altering the dynamic range, making this gain value the most used amongst the astrophotographers.

    Mechanical Design

  • Sensor

    Sony IMX571


    26.1 Megapixels 6248 × 4176

    Pixel Size


    Exposure Range




    Non-volatile memory/On camera storage

    Build-in total 192K byte user-accessible space(image size up to 480X320)

    DDR3 Buffer


    Focus Distance to Sensor


    Shutter Type

    Rolling Shutter

    Protect window

    IR/AR coated window

    Operating System Compatibility

    Mac, Windows, Linux



    Bit rate

    16bit output







    Working Temperature


    Storage Temperature


    Working Relative Humidity


    Storage Relative Humidity


    Supported Resolutions

    Binning 1×1:

    6248×4176 3.51fps

    4096×3072 4.75fps

    4096×2160 6.71fps

    3840×2160 6.71fps

    1920×1080 13.13fps

    1280×720 19.29fps

    640×480 28.06fps

    320×240 51.44fps


    More resolutions can be user defined

Customer Reviews

Based on 1 review
Michel Brassard
Choix judicieux

David Astro prend le temps de comprendre mes besoins et conseils judicieusement des composantes requis. Merci