ZWO ASI 178 Cooled Monochrome CMOS Telescope Camera

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  • $649.00
  • Regular price $699.00

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  • Pixel Array: 3096 x 2080
  • Pixel Size: 2.4 micrometer x 2.4 micrometer
  • Sensor Size: 7.4mm x 5mm
  • Diagonal: 8.92mm
  • Great value and versatile application CMOS Camera


ZWO ASI 178 Cooled Monochrome CMOS Telescope Camera

This ZWO ASI178MM Cooled Astronomy Camera includes the back-illuminated 6.4M resolution Sony IMX178 image sensor. This 1/1.8 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 2.2e, and superior sensitivity combine to make the ZWO ASI178MM an excellent camera for both astronomy and microscopy, excelling in deep sky imaging.

This cooled version incorporates active TEC temperature control for the ability to cool the sensor to 35C to 40C degrees below ambient. This enhanced cooling control offers the best image stability for longer imaging sessions.


ADC14 bit
Back focus17.5mm
Bayer MatrixMonochrome
Camera ConnectionM42 x 0.75
Camera Cooling TypeCamera Cooling Type
Delta T40°C Below Ambient
Dynamic Range12.8 Stops
Free ShippingYes
Full Rez Frame Rate30fps
Full Well15ke
InterfaceUSB 3.0
Max Frame Rate479fps
Maximum Exposure Time1000 seconds
Mega Pixels6.4 mp
Minimum Exposure Time0.000032 seconds
Operating System CompatibilityLinux (3rd Party) & Mac & Windows
Pixel Array3096 x 2080
Pixel Size2.4 Microns
Power Consumption12V 2A max
Read Noise2.2e
Sensor DesignCMOS
Sensor Diagonal8.92mm
Sensor Diagonal9mm
Sensor TypeCMOS
SensorSony IMX178
Shutter TypeRolling Electronic
Warranty2 Year Warranty
Weight0.9 lbs


  • ZWO ASI178MM-COOL or ASI178MC-COOL Camera Body
  • M42-1.25 inch T-Mount
  • 1.25 inch Cover
  • 2m long USB 3.0 cable
  • USB 2.0 short cable x2
  • Backup desiccant tablets packet
  • Driver & Extra Software CD (Mac, PC&Linux Compatible)


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Ask a Question
  • Does this camera require an additional power supply beyond what is provided over USB to power the cooling system?

    It does require a 12V DC cable to power the cooling. ZWO does not have a solution at this time.

  • What is the max full frame rate? Is it at the USB 3.0 speed? Is there a buffer?

    Maximum frame rate requires a fast USB 3.0 connection and a fast computer, but even so it varies based on bit depth and frame size chosen. Assuming that your computer is not the limiting factor, here are the max frame rates stated by the manufacturer: 1