ZWO ASI 174 Monochrome CMOS Telescope Camera

  • Ideal for solar, lunar, planetary, and deep-sky imaging!
  • Sensor type: 1.5-inch CMOS Monochrome.
  • Resolution: 2.3 MP.
  • Pixel Array: 1936 x 1216.
  • Pixel Size: 5.86-micrometer x 5.86 micrometer.
  • Maximum Frame Rate at Full Resolution: 164fps.
  • Maximum Frame Rate at 640 x 480: 397fps.


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  • Regular price $599.00

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ZWO ASI 174 Monochrome CMOS Telescope Camera

The ZWO ASI174 Monochrome Camera is ideal for solar, lunar, planetary, and deep-sky imaging. Designed with modern features like a USB 3.0 port, an AR window, ST-4 guide port, and 0.25-inch tripod thread, make it an exceptional performing astrophotography camera. 

The ZWO ASI174 Monochrome Camera Specifications at a Glance


Optimum Design

Encamped in a vibrant, metallic red aluminum housing and with both a USB and ST4 autoguider port, the ZWO ASI174MM is versatile and fast. 

Prioritized Mechanics

Sony IMX174 CMOS Sensor 

Bad vision, wind, or movement can alter the image if the readout speed is not quick enough (< 30fps). The Sony IMX174 CMOS sensor assures images of moving objects avoid focal plane distortion, something crucial during solar and lunar imaging. 


ADC12 bit
Back Focus17.5 mm
Camera ConnectionM42x0.75 mm
Color or MonoMonochrome
Free ShippingYes
Full Rez Frame Rate128fps
Full Well32ke
Max Frame Rate577fps
Mega Pixels2.4 mp
MP2 to 4 MP
Pixel Array1936 x 1216
Pixel Size5.86 microns DC
PS4 to 6 Microns
Read Noise6e
Sensor Diagonal13.4 mm
Sensor TypeCMOS
SensorSony IMX174
Warranty2 Year Warranty




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    John S.
    United States United States
    ZWO ASI 174mm

    I have ordered many items from OPT over the years. Their staff is incredible and very helpful, always taking time to answer my questions. I highly recommend OPT and will continue to purchase from their fine company. Thanks OPT! John from Viera Florida