ZWO ASI120MM-S Monochrome Astronomy Camera

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The ZWO ASI120MM-S Monochrome USB Astronomy CMOS Camera is an extremely popular budget monochrome camera, perfect for use as a guide camera or a basic planetary camera!

Bundle with the ZWO 30F4 Mini Guidescope to get started with autoguiding.  


RRP $359.95 RRP OUR PRICE $319.95
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    An Affordable First Monochrome Astronomy Camera.

    ZWO ASI120MM-S MonoChrome USB 3.0 Astronomy Camera

    The ZWO ASI120MM-S Astronomy Camera is an affordable, compact and fast astronomy camera, perfect for a first astronomy camera! Featuring fast frame rate of 35FPS and up to 60FPS under 1280x960 full resolution, this is great starter for your astroimaging journey. As a basic planetary camera, the ZWO ASI120MM-S utilises AR0130CS 1/3" (4.8mm*3.6mm) sensor to produce 1280x960 resolution.





    As a guiding camera, you'll like the sensitivity of a 3.75μm pixel size. This camera offers 12bit ADC. It also features a low read noise of 4.0e, full well of 13000e and QE of almost 80%. 

    ZWO ASI120MM-S Specifications

    Accepts both USB3.0 and USB2.0 ports, but ideally used with USB3.0 for full 60fps frame rate at full resolution. The included ST4 port and cable can be used for autoguiding. 


    Mechanical Diagram

    ZWO-ASI120MM-S Mechanical Drawing


    Camera Connection

    How to achieve a 55m back focus with an astronomy camera and a telescope with either a M42 or M48 thread


    About ZWO Optical

    Astrophotography has never been easier.

    Established in 2011, ZWO Optical is a fast-growing global astroimaging camera powerhouse based in Suzhou China. They focus on building and innovating ground-breaking CMOS cameras such as the iconic ZWO ASI120MM Monochrome CMOS camera (the first-ever planetary CMOS camera to beat a CCD in the early 2010s). ZWO continues to pioneer new astrophotography technology with revolutionary features to capture exceptional quality of images of space that will last you a lifetime. Today, ZWO cameras are recognised by every passionate astrophotographer and are available in over 25 countries internationally.

    Product Code: ZWO-ASI120MM-S

    More Information
    Sensor TypeAR0130CS CMOS
    Sensor Size1/3"
    Pixel Size3.75µm
    Resolution1.2MP (1280 x 960)
    Colour / MonochromeMonochrome
    Read Noise4.0e
    ShutterRolling Shutter
    QE Peak80%
    Full Well13000e
    Exposure Range64µs-2000s
    Operating System CompatibilityWindows
    Working Temperature-5°C—45°C
    Storage Temperature-20°C—60°C
    UsageGuiding, Planetary Imaging
    Camera Weight100g
    Warranty Information2 Years
    Additional Specifications of ProductBinning 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 Binning 2×2: 640X480@45FPS
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    ZWO ASI120MM-S ZWO ASI120MM-S Monochrome USB 3.0 Astronomy Camera - Body 1
    1.25 1.25" Cover 1
    ST4 Cable ST4 Cable 1
    1.25 1.25" Extender 1
    M28.5-CS Adapter M28.5-CS Adapter 1
    USB2.0 Type-C Cable 0.5m USB2.0 Type-C Cable (0.5m)  2
    USB2.0 Type-C Cable (2m) USB2.0 Type-C Cable (2m) 1
    ZWO Quick Guide Quick Guide 1