ZWO ASI 120MC USB 2.0 Colour Camera

ZWO ASI 120MC USB 2.0 Colour Camera
 ZWO ASI 120MC USB 2.0 Colour CameraZWO ASI 120MC USB 2.0 Colour Camera 


In stock - Shipped 1-2 working days.

Model:  zwo_asi120mc
Part Number:  ASI120MC
Brand:  ZWO



  • ASI120MC Camera
  • 150° Lens
  • M42-1.25" Nosepiece Adapter
  • 1.25" Cap
  • 2-metre USB 2.0 Cable
  • 2-metre ST-4 Cable
  • Driver CD

Colour version of the hugely popular ASI120MM lunar and planetary imaging camera.

Compared to ZWO’s entry-level ASI034MC, the ASI120MC is better for planets (higher sensitivity) the Moon (larger sensor with more pixels) and guiding (larger sensor). 

The ASI120MC is a capable guide-camera, particularly when used with finder-guiders and other fast / short guide-scopes. 

Peak QE of 75%, (better than the ICX618) and no Fixed pattern Noise! 

Supports 30FPS at it's maximum 1280X960 resolution and long time exposures up to 1000s! 

The sensor is protected by a UV/IR cut anti-reflection optical window so a separate 1.25" UV/IR rejection filter is not necessary. 

Supplied with a 150-degree wide lens so you don't even need a telescope to start imaging the stars! 


It is possible to screw the 150-degree accessory lens in too far resulting in a scratched optical window! Please adjust focus slowly and don't focus beyond infinity. 

To achieve the ASI120's maximum resolution you will requires a 480 mbs USB connection. 

Not fully Mac OSX compatible, nor Windows though virtual machine. Windows though Bootcamp is recommended. 


ZWO ASI120 cameras have have been reviewed at world most popular astronomy magazines. Please click links below to read PDF documents:

All ZWO cameras include a 2-year warranty. 

Camera Field of View Simulator

Optical Window Transmission

This ZWO colour cameras features a UV IR-cut off filter as an optical window, the transmission chart of this is shown below.

ASI120MC QE Curve

Product Specifications

Sensor 1/3″ CMOS AR0130CS(Color) / MT9M034(mono)
Resolution 1.2Mega Pixels 1280×960
Pixel Size 3.75µm
Exposure Range 64µs-1000s
ROI Supported
Interface USB2.0
Bit rate 12bit output(12bit ADC)
Adaptor 2″ / 1.25″ / M42X0.75
Dimension φ62mm X 28mm
Weight 100g
Working Temperature -5°C—45°C
Storage Temperature -20°C—60°C
Working Relative Humidity 20%—80%
Storage Relative Humidity 20%—95%


Supported Resolutions:

Binning 1×1:

  • 1280X960@35FPS
  • 1280X720@46FPS
  • 1280X600@55FPS
  • 1280X400@80FPS
  • 960X960@46FPS
  • 1024X768@54FPS
  • 1024X600@69FPS
  • 1024X400@101FPS
  • 800X800@66FPS
  • 800X640@74FPS
  • 800X512@102FPS
  • 800X400@108FPS
  • 800X320@158FPS
  • 640X560@98FPS
  • 640X480@113FPS
  • 512X440@123FPS
  • 512X400@135FPS
  • 480X320@165FPS
  • 320X240@215FPS

Binning 2×2:

  • 640X480@35FPS

The following manuals and downloads are available for this product:


ZWO ASI Camera User Manual v1.3 (PDF)

ZWO ASI USB2.0 Camera FAQ v1.0 (PDF)

ZWO ASI USB2.0 Camera Troubleshooting v1.0 (PDF)


ZWO Software and Drivers


ZWO ASI 120MC USB 2.0 Colour Camera Questions & Answers

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Average Rating (3 Reviews):  
Write a Review and share your opinions!

Rating (max 5):  
Brilliant Camera
Wednesday, 6 June 2018  | 

This was a quick replacement for an old camera that died. arrived quickly and performed out of the box. great!

Rating (max 5):  
A tremendous camera to start out with
Friday, 25 May 2018  | 

Having just finished going through a batch of lunar videos taken a few days into the new moon it seemed that I really should get round to writing a review for this camera. After using a Pentax dslr, both at the telescope with Baader Hyperion eyepieces, and with the Pentax skytracking gps with and without filters for star fields I decided to try and take things further and purchased this camera as a starter. really because of the price. I should have done it sooner! Although sceptical of the amount of pixels on the chip compared to a dslr I find the results absolutely amazing. These latest videos were taken using a Skywatcher 80mm f5 refractor with and without a barlow on an EQ5 mount with just a R.A. drive onto an old Dell 5520 from Ebay using Firecapture. The results are clear, precise, and so full of detail and easily surpass the best of my dslr lunar images. It took a few sessions to achieve this using a Skywatcher 127 Mak but that was down to having to learn Firecapture. For someone who never bothered with the moon, as it interfered with my variable stars, this amazing versatile little camera has opened up a whole new aspect and is teaching me a lot. I hope this has provided an insight for anyone starting out in the imaging field.

Rating (max 5):  
Brilliant performance for the price
Saturday, 17 February 2018  | 

I decided I had pushed imaging with modified webcams as far as I could go, so I thought I would try a dedicated planetary webcam. With the ASI120MC I saw an instant improvement in my results, with much more fine detail and better colour. Using Sharpcap you get loads of options and on a good night the live view of Saturn or Jupiter is excellent, let alone the processed images

The camera also works excellently as a guide camera using PHD2.

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