ZWO ASI174MM USB3.0 Monochrome CMOS Camera with Global Shutter Technology and Autoguider Port

product code: ASI174MM
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ZWO ASI174MM USB3.0 Monochrome CMOS Camera with Global Shutter Technology and Autoguider Port

This NEW ZWO ASI174MM camera makes SONY's Pregius Global Shutter CMOS technology available for amateurs without braking the bank. it comes with a large sensor, large pixel size, high frame rate and comparatively high resolution that makes it the best choice for a beginner who would like to focus on Lunar and Solar imaging and try some deep sky imaging as well.

(For solar imaging it is essential that you use the correct safety equipment.  You should never point a telescope directly at the sun or you run the risk of permanent blindness - if you are not sure, please ask us for details.)

This camera comes with USB3.0 connection that gives you the opportunity to use it with newer laptops and is backward compatible with USB2.0. High framerates are not a guarantee for excellent images, but certainly helpful if other circumstances are given.

It comes with an AUTOGUIDER PORT just as many other ZWO cameras, so you may use it for both imaging or guiding!

This camera will mostly be used for imaging the Sun and the Moon, but it can also be used for deep sky imaging up to a certain level as it supports up to 1000 seconds exposure time. 

This monochrome version is recommended for L-RGB or narrow band deep sky photography if you want to get out the best data from your camera and achieve sharp, contrasty deep sky, solar or lunar images, but if you don't want the hassle or cannot spend much time and happy to go for a compromise, simply choose the colour version, the ZWO ASI174MC.

With this monochrome version, you'll also need a filter wheel and a set of L-RGB filters or H-alpha and OIII filters, and maybe even H-beta and SII filters as well for narrow band astro photography...

Features of the New ZWO ASI174MM Camera

Recommended for the Sun, Moon and some deep sky objects
(To image the Sun you'll have to use a proper front solar filter or Herschel wedge depending on your telescope type. Please contact us if not sure!)

Resolution: 1936X1216 at up to 164fps (at 12bit ADC) or 128fps (at 10 bit ADC)
Long time exposure up to 1000s!

Autoguider Port
Built-in RAW mode and Grey mode output support. Only about 30% storage space required compared to the Color data format!
Peak Quantum Efficiency: 78% (this is a very high value)
No fixed pattern noise (FPN)!
Full aluminum housing with standard 2" interface
M42X0.75 internal thread.

T-thread to C-mount adapter included
Compatible with DirectShow and ASCOM
Compatible with MaxIm-DL
Supported OS: Windows, Linux, Arm-linux, Mac OSX


On the included CD you'll find drivers and two software applications: Firecapture and SharpCap. These are both freeware and the latest versions can be downloaded from the developers' websites.

If you have any problem with installing any of the software from the CD, please download them from here:
Firecapture Downloads
SharpCap Downloads
We'd recommend to use the beta version of Firecapture as the 2.2 version is not fully functional with the ZWO ASI cameras...

Specification of ZWO ASI174MM USB3.0

Sensor: 1/1.2" CMOS SONY IMX174LLJ
Resolution: 2.3Mega Pixels 1936x1216
Pixel Size: 5.86µm
Exposure Rage: 32µs-1000s

Supported Resolutions:
12bit ADC:
2X2Bin : 968x608@128FPS

10bit ADC:
2X2Bin : 968x608@164FPS

ROI: Supported
USB3.0  (and backward compatible with USB2.0 as well)
Bit rate: 12bit output(12bit ADC)
Adaptor: 2" / 1.25" / M42X0.75
Dimension: φ62mm X 41mm
Weight: 140g

Working Temperature: -5°C—45°C
Storage Temperature: -20°C—60°C
Working Relative Humidity: 20%—80%
Storage Relative Humidity: 20%—95%

For full specification, driver installation tutorial (youtube video), basic usage information and recommended third party software please visit the manufacturer's website: ZWOptical

There is also a ZWO Forum here for ZWO camera users: ZWO USER GROUP

and also a Yahoo Group where you can find lots of information about how other members use the ZWO cameras: Yahoo Group ZWO ASI Cameras

ZWO ASI174 Cooled

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Brand ZWOptical
Condition New
Product Code ASI174MM