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The QHY5-III series cameras are USB3 super-speed cameras and guiders. They can be used in a standard 1.25-inch eyepiece holder and have an adjustable location ring for confocality with an eyepiece. All QHY5III series cameras come in a very small but powerful package!

The QHY5III178's sensor is Sony's STARVIS BSI image sensor. STARVIS is a trademark of Sony Corporation. BSI means the sensor is Back Side Illuminated which dramatically increases the sensor's sensitivity and produces high picture quality in the visible-light and near infrared light regions. This sensor has small 2.4um pixels and a 1/1.8-inch sensor that can be used for high-precison guiding data with a good FOV for easily finding guide stars. The camera is designed to be a wide FOV autoguider, high-resolution planetary camera, and entery level deep sky camera. For deep sky imaging, the QHY5III178 uses our proprietary anti-amp glow control function that reduces amplifer glow significantly. The QHY5III178 has the highest resolution in the new QHY5III series. Available in both color and monochrome.


Model QHY5III178
CMOS Sensor IMX178(BSI)
Pixel Size 2.4um
Pixel Array 3072*2048
Effective Pixels 6.3 Megapixels
Sensor Optical Format 1/1.8-inch
Frame Rate@Full Frame 50FPS
Frame rate @ROI readout 100FPS@
Ful Well Capacity 15ke-
Readout Noise 0.9e- to 2.4e-
A/D 14-bit
Shutter Type Electric Rolling Shutter
Color Version QHY5III178C
Mono Version QHY5III178M
Computer Interface USB3.0
Guide Port Standard 6-pin RJ11 Guide Port
Telescope Interface 1.25-inch, CS mount
Weight 87g