ZWO ASI178MC CMOS Astrophotography Camera

  • Great for Astro-imaging and Microscopy.
  • Pixel Array: 3096 x 2080.
  • Pixel Size: 2.4 microns.
  • Interface: USB 3.0.
  • Great Value and Highly Versatile.
  • Full-color CMOS Camera.
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  • Regular price $349.00

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ZWO ASI178MC CMOS Astrophotography Camera

This ZWO ASI178MC astronomy camera includes the back-illuminated 6.4 M resolution Sony IMX178 image sensor. This one and one-eighth inch CMOS sensor has a 3096 x 2080 pixel array and a 2.4-micrometer square pixel size. With a 14-bit ADC, extremely low read noise of 2.2 e, and superior sensitivity the ZWO ASI178MC is an excellent camera for both astronomy and microscopy.

ZWO ASI178MC Specifications at a Glance 

Experience the Sony IMX178 CMOS Sensor

  • The Sony IMX178 back-illuminated CMOS image sensor offers high sensitivity, resolution and dynamic range.
  • The IMX185 is an "Exmor R" sensor with notably improved imaging features, including sensitivity and low read noise, by correcting the basic structure of "Exmor" adopted column-parallel A/D converter to back-illuminated type.
  • The IMX178 is a Sony STARVIS sensor and has a sensitivity of 2000mV+ per 1-micron square (when imaging with a 706 cd/m2 light source, f/5.6 in 1-second accumulation correspondent), and provides superior image quality in the visible and near IR light regions.
  • The 14-bit output helps achieve high dynamic range which lessened quantization noise and hidden dark random noise. This facilitates clear image quality in light and dark areas, even with high contrast imaging targets.
  • Everything required to control your ZWO Astronomy Camera is readily available at the ZWO website.

ZWO ASI178MC Color Astronomy Camera Full Specifications:

  • Sensor Size: 7.4 mm x 5 mm.
  • Diagonal: 8.92 mm.
  • ROI: Supported.
  • ST4 guider port: Yes.
  • Focus distance to sensor: 12.5 mm.
  • Shutter Type: Rolling shutter.
  • Window: IR-Cut.
  • Interface: USB 3.0/ USB 2.0.
  • Adapter: 2 inches to 1.25 inches (M42x0.75).
  • Weight: 4.23 ounces (without lens).
  • Working temperature: Minus 5 degrees Celsius to minus 45 degrees Celsius.
  • Working relative humidity: 20% to 80%.
  • Storage relative humidity: 20% to 95%.



    ADC14 bit
    Back Focus17.5 mm
    Camera ConnectionM42 x 0.75
    Color or MonoColor
    Delta T40C
    Dynamic Range13.5 Stops
    Free ShippingYes
    Full Rez Frame Rate60fps
    Full Well25ke
    Max Frame Rate479.7fps
    Mega Pixels6.4 mp
    MP5 to 8 MP
    Pixel Array3096 x 2080
    Pixel Size2.4 microns
    PS3 Microns or Smaller
    Read Noise2.2e
    Sensor Diagonal9 mm
    Sensor TypeCMOS
    SensorSony IMX178
    Weight0.9 lbs


    • ZWO ASI178MC Camera Body.
    • 2 m long ST4 guider cable.
    • 1.25-inch Cover.
    • M42/ 1.25-inch T-Mount.
    • 2 m long USB3.0 cable.
    • Driver and Extra Software CD (Mac, PC, and Linux Compatible).


    Customer Reviews
    5.0 Based on 7 Reviews
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    Filter Reviews:
    Chile Chile
    Zwo 178 color camera

    It's a very good camera, low priced, arrived two days before the original date to my country. The best of the camera is you don't need to align different frames of colors in a planet with low surface details, just align the frames in a video and you're ready. I have other zwo camera with filters and it's more difficult to composite a picture

    Demetre K.
    United States United States
    Great beginner camera with pro results

    Great experience with this camera. It’s plug and play and easy to use. Images come out clean and high quality

    Jerry B.
    United States
    Love The Camera!

    Camera has not been used in the field due to bad weather but expect to see it perform well. Set up software install with no problem into my laptop and the camera performed well on my tabletop. Item was well packaged. Thank you for your prompt shipping. -- Jerry E. Bayles

    United States
    First Light ASI-178MC Review

    I've been doing planetary imaging for years, bought the ASI-178MC to try lucky imaging of some deep space objects. I'm pleasantly surprised by this camera, lower noise and higher sensitivity than I expected. I was able to able to get some great detail by stacking a bunch of 5-second exposures.

    Nicholas M.
    United States
    OPT cares about your satisfaction.

    I must say that OPT always makes me feel relaxed about the process of understanding what I need, and how satisfied I am with the purchases I've made. They stand behind the promise of not letting you get stuck with products you aren't satisfied with. purchasing, and using. I'll keep going here

    United States
    Great Customer Assistance

    While attempting to purchase an Astro camera from OPT I discovered a limitation in the checkout software related to my Military address. Much to my pleasure OPT was able to offer support for customers like myself and with the help of a sales agent a quick and expedient solution was provided thus allowing me to complete my transaction. My camera was shipped quickly and received quickly, in tact and in perfect working order. Happy customer.