ZWO ASI120MC-S USB3.0 Colour Planetary/Guide CMOS Camera

Brand: ZWO
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ZWO ASI120MC-S USB3.0 Colour Planetary/Guide CMOS Camera

Brand: ZWO
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Out of stock. Can be pre ordered.
For Availability Call 02 9518 7255 or email


ZWO ASI120MC-S Colour Astronomy Camera

The ZWO ASI120MC-S has the same features of the ASI120MC but with the addition of high speed USB 3.0 communication allowing capture rates of 60FPS at full resolution. Faster frame rates help capture moments of steady seeing bringing out the best in your lunar and planetary images.

When getting starting in astrophotography there are so many options when it comes to choosing a camera. With ZWO’s ASI cameras you get amazing versatility including:

  • Fast frame rate and superb resolution for exquisite planetary, lunar and solar imaging (using a properly filtered telescope).
  • Long exposure imaging of many brighter deep sky treasures thanks to the ASI120MC-S high quantum efficiency and 12bit output.
  • The ability to capture all sky views of satellites and bright meteors using the supplied 150° wide angle C-mount lens.
  • Auto guiding your mount in conjunction with a dedicated DSLR or cooled CCD camera using the in-built ST4 compatible auto guider port found on ZWO’s ASI120MC-S cameras.

This camera from ZWO is a real “all-rounder” and represents outstanding value for money.

What’s Inside?

The ZWO ASI120MC-S camera uses a monochrome 1/3″ CMOS AR034CS sensor, with a pixel array of 1280 x 960 and a pixel size of 3.75 um. The sensor has outstanding sensitivity with a peak QE of 75%!

QE Curve for MT9M034

Included 2.1mm Fish-eye lens

A major bonus is the inclusion of a 150º wide angle lens attachment allowing you to use the ASI120MC-S even without a telescope! When connected to the camera, you can do super wide angle shots similar to that produced by an all-sky camera. Capture images of the Milky Way stretched overhead, or record satellite passes or bright meteors as they flash overhead.

ZWO all sky camera view with fish eye lens

High Resolution Solar System Imaging – par excellence!

The ZWO ASI120MC-S camera is a proven performer when it comes to imaging the planets, Moon and Sun. The sensor can deliver up to 60 fps at full resolution and a staggering 254 frames per second at reduced resolution (340 x 240). The wide range of capture resolution settings available with this camera allows you to go from planetary imaging to deep-sky quickly and easily, without the need for another camera.

Some fine examples of planetary images captured with the ASI120MC.

Supports Region of Interest (ROI)

The ZWO ASI120MC-S allows you to choose a smaller region of interest that can be captured at a much faster frame rate compared to full resolution.
This is useful for planetary imaging where even at very long effective focal lengths the desired target only occupies a small part of the entire sensor area.
In such instances you can specify a smaller ROI and capture at a very fast frame rate. This allows you to capture a sequence of videos in a very short period of time avoiding problems of frames not aligning properly due to Jupiter’s very fast rotation.
It also means the captured sequences don’t take up as much storage space.
The different ROI options are shown at the bottom of the page.

ZWO’s ASI120MC-S: The Complete Package!

The beautiful red housing of the ASI120MC-S is made of aluminium, and sports a USB and ST4-type auto guider port. 6.5-foot cables for both are included in the box. The 2″ interface has M42X0.75 internal threads. A standard M42 to 1.25″ nosepiece rounds out the package. The underside of the camera has one 1/4-20 thread in its center, and four M4 threads evenly spaced around the outside edge.
This camera comes with a 2m long USB cable, a 2m long ST4 guider cable, 1.25″ clear window, 150º wide angle lens attachment, Driver & Software CD, and a M42-1.25″ nosepiece. Software on the CD includes the users manual, Windows camera driver, ASCOM Driver, SharpCap Image Capturing Software, FireCapture Image Capturing software, and Stakkert 2 Stacking Software.

Product manuals plus drivers and software are available here.

Capture control software for the ASI120MC-S can be downloaded from the following sites:

SharpCap V2.8.2325 and up

Firecapture V2.5.03 and up


ASI120MC-S technical details

Tr>Sensor1/3″ CMOS AR034CS (colour)Supported resolutions:Binning 1×1:
1280X960 @ 60FPS, 1280X720 @ 98FPS, 1280X600 @ 116FPS, 1280X400 @ 168FPS
960X960 @ 74FPS
1024X768 @ 90FPS, 1024X400 @ 160FPS
800X800 @ 85FPS, 800X640 @ 106FPS, 800X480 @ 141FPS
640X480 @ 133FPS
512X440 @ 145FPS, 512X400 @ 158FPS
480X320 @ 196FPS
320X240 @ 254FPS
*Tested under USB3.0 port without overclocking. There is an option to overclock 30% of the current fps

ZWO ASI120MC-S Specifications

Resolution1.2Mega Pixels 1280×960
Pixel Size3.75µm
Exposure Range64µs-1000s
Bit rate12bit output (12bit ADC)
Adaptor2″ / 1.25″ / M42X0.75
Dimensionφ62mm X 28mm
Working Temperature-5°C—45°C
Storage Temperature-20°C—60°C
Working Relative Humidity20%—80%
Storage Relative Humidity20%—95%

ZWO ASI120MC-S Mechanical Drawing

ASI120XX-S mechanical drawing

For the monochrome version, check out the ASI120MM.

ZWO ASI120MC-S USB3.0 Colour Planetary/Guide CMOS Camera


ZWO’s ASI120MC-S astronomy camera introduces USB 3.0 speed allowing up to 60FPS capture at full resolution (1280 x 960)!
High sensitivity and fast frame rate makes this camera perfect for high resolution lunar, planetary and solar imaging.

The ASI 120MC-S is extremely sensitive with a peak QE of 75% showing no fixed pattern noise (FPN).
Exposure range is from 64µs up to 1000s.
In addition the ZWO cameras have a built in ST4 auto guiding port meaning you can also use it for auto guiding with a dedicated imaging camera.

The ASI120MC-S proves good things come in small packages – it’s only 62mm diameter x 28mm deep to the 2″ flange.

Weight: 100g







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