ZWO ASI174MM Mini Mono

The ZWO ASI174MM Mini Camera is the ultimate guide camera. It is designed for astrophotographers who seek a guide camera with high sensitivity and a sensor as large as what an large off-axis guider can take. Perfectly suited for serious astrophotographers, the ASI174mini ensures reliable autoguiding to achieve sharp, long-exposure images of the night sky. This camera is ideal to use with an off-axis guider coupled to telescopes of short to long focal lengths.

High-Sensitivity Sensor

This monochrome guide camera with outstanding sensitivity features big 5.86μm pixels, boasting a 1936×1216 array, and comes with a substantial full well capacity of 32400e. With a peak quantum efficiency of 77% at 500nm, the camera excels in detecting faint stars, making it easy to find multiple guide stars even with a long focal length telescope.

Easy to integrate

ZWO has engineered the ASI174MM Mini to be easy to integrate into your astrophotography setup.Its small size makes it an unobtrusive addition to your astrophotography rig, and its compatibility with a wide range of telescopes and mounts enhances its utility as an autoguiding tool.

Its type-C USB 2.0 port allows for straightforward data transfer and power, and it's compatible with popular astrophotography softwares for seamless operation. The ST-4 port can be used to send guide corrections to the mount when the mount does not support ASCOM pulse guiding.

Performance graphs

As illustrated in the graphics below, the ASI174mini offers a read noise going as low as 3.5e. Its unity gain is of 180. Its 12-bit ADC and dynamic range allows to get the nice star profiles needed for autoguiding.

Mechanical Drawing

The ASI174MM Mini features a 1.25" body, and its sensor is positioned 8.5mm within the camera body. This compact design that requires minimal back focus ensures that this camera is compatible with virtually all guide scopes and off-axis guiders (OAG).