ZWO ASI120S Super Speed Monochrome CMOS Camera - USB 3.0

ZWO ASI120S Super Speed Monochrome CMOS Camera - USB 3.0
Item # ZWO-ASI120MM-S
7 Questions(s)

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  • The ZWO ASI120MM-S Super Speed camera features a monochrome CMOS sensor and USB 3.0.
  • 1.2MP CMOS sensor has an array of 1280x960 and 3.5 micron square pixels. Peak Quantum Efficiency is 75%.
  • Absolutely no fixed pattern noise!
  • Ultra fast download speeds up to 254 frames per second.
  • 60 frames per second at full resolution.
  • Aluminum body has ST4 and USB ports.
  • Package includes USB and ST4 cables, 1.25" nosepiece, 150ยบ wide angle lens adapter, IR-cut sensor window, CD with software, drivers and instruction manual.


An ultra fast incarnation of it's predecessor, the ZWO ASI120S has the ability to deliver frames at 254 per second with reduced resolution or 60 frames per second at full resolution.  This wide range of resolution and capture settings allows you to switch from planetary and lunar imaging to DSO's easily without having to weigh down your set up with an additional camera.

Housed in a gorgeous metallic red aluminum housing with both a USB and ST4 autoguider port.  6.5 ft. cables for both are included as are a  2" M42x0.75 threaded interface and standard M42 to 1.25" nosepiece.  A 1/4-20 thread in the center bottom of the camera makes for easy attachment to a wide variety of camera mounts and tripods.   4 M4 threads offer additional mounting positions, along the outside edge.

A versatile camera has just become faster! Featuring a USB 3.0 connection, image download times are lightning fast.  The ZWO ASI120 Super Speed Monochrome camera is a perfect choice for lunar and planetary imaging and features a CMOS sensor sensitive enough to capture bright deep-sky objects.  Truly a "do it all" camera at an incredible price making it the clear choice for the serious beginning or intermediate astrophotographer.

The ASI120MM-S is built on a 1/3" CMOS AR0130S monochrome sensor. Beautiful details are revealed in high resolution black and white.  Pair with a  filter wheel to capture each color or narrowband and stack images as you choose.  The pixel array of 1280x960 and a pixel size of 3.75 micron square, this camera is capable of capturing moderately wide fields with the included 150º wide angle lens adapter.  Peak QE is 75% with absolutely no fixed pattern noise.  Protecting the sensor is an IR-cut window.

This camera will include a 2m long USB 3.0 cable, a 2m long ST4 guider cable, 1.25" IR-cut window, 150º wide angle lens adapter, driver & software CD, and an M42-1.25" nosepiece.  Software on the CD includes a user manual, Windows camera driver, ASCOM driver, SharpCap image capture software, FireCapture image capture software and Stakkert 2 stacking software for post processing.

Additional Information

Additional Information

Manufacturer ZWO
Color or B&W? Monochrome (B&W)
Sensor Type CMOS
Series ZWO ASI
Pixel Size < 5 Microns
Chip Diagonal 10.1mm - 12mm
Warranty 1 Year Warranty
# of Sensors Single Sensor
Sensor Model AR0132
CCD Class Standard
Quantum Efficiency Peak 75%
Pixel Size in Micrometers 3.5 micron square
Pixel Array 1280 x 960
Sensor Diagonal 11.85mm
Minimum Exposure Time 0.000064 seconds
Maximum Exposure Time 1000 seconds
Integrated Guider? No
Binning Modes 2x2
Shutter Type Digital
Filter Wheel No
Interface USB 3.0
Operating System Compatibility Windows
Included Software SharpCap, FireCapture and Stakkert 2
Camera Body Dimensions 2.44 x 1.1 in.
Camera Weight 3.53 ounces
Included Items

Included Items

  • ZWO ASI120MM-S Camera
  • 6.5ft USB 3.0 Cable
  • 6.5ft ST4 Guiding Cable
  • 1.25" nosepiece
  • Driver and Software CD
Questions & Answers

Product Questions

Does the ZWO ASI120S Super Speed Monochrome Camera USB 3.0 work as an autoguider as well as a planetary camera? Thanks.
Will it work with windows 10?
Will the USB 3.0 camera work with a USB 2.0 port?
Is this adaptable with C mount lenses?
Will this work with PHD on a Mac?
Is it possible to attach a Nikon DSLR lens to this camera? Also, is it possible to remove the IR cut filter from this camera?
It says this camera has an IR cut sensor window. Will this interfere with imaging hydrogen alpha either through a narrow band filter or a solar telescope?
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