Copyright 2002-2015 QHYCCD
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- cooled usb3.0 planetary/deep sky ColdMOS camera
status: in stock

A detail Review of QHY174 camera can be found at
1.Evaluation of multipurpose QHY174 M Cooled monochrome camera
2.QHYCCD Anti "amp glow" function for IMX 174 now extended to very short exposure

QHY174M/C Camera Specification
CMOS Sensor
1/1.2inch Exmor CMOS sensor with Global shutter
Effective Pixels
Pixel Size
Effective Area
Electric Rolling Shutter.
Readout Noise
5e@low gain    3e@high gain
System Gain
Unity Gain
Frame Rate (on 8bit)
138FPS @ 1936*1216    260FPS@960*600    490FPS@480*300
ROI Support
Yes. Any Area ROI
Exposure Time
AD Sample Depth
10bit/12bit (8bit/12bit output)

Anti-amplight Control
Yes (Reduce the amplight significantly)
2-stage TEC, Typical -40 below Ambient. Temperature Regulated
USB Powered for camera and +12V powered for TEC
Anti Dew Control
Air Connector for removable silicon gel tube
Heat board for optic window of airproof CCD chamber
Computer Interface
USB3.0 Super Speed
Telescope Interface
M42/0.75&2inch adapter. Optional C-mount adapter
Color Wheel Port
4PIN QHYCFW2 socket
Guide Port
6PIN RJ11 Guide Port
Optic Window
AR+AR (Mono)    IR+AR(Color)
Power consumption
QHY163 Electric Interface
12V input with lock, USB3.0 socket, 4PIN QHYCFW, 6PIN RJ11
Reference Price (Not include tax)
QHY174M       USD939  
QHY174C       USD899

QHY174M-GPS Time Domain Imager
- with GPS pps synced high precision hardware stamp

-----IMX174 has a global shutter and high frame rate. Why not use this capability on time domain imaging?

QHYCCD proud to declare the QHY174 coldmos camera. The camera will begin beta testing from the end of this month. Now we disclose the mysterious function of it. The GPS based PrecisonTime function for star eclipse, meteor discovery, UFO recording and any other scientific exploring things which require extremely high timebase.
QHY174 has dual stage TEC cooling, -45C below ambinet and fully anti-moisture functions which includes the CMOS optic window heater, and the removable silicon tube for CMOS chamber dry control.
QHY174 has the 4pin QHYCFW2 colorwheel control port and 6pin autoguide port.
QHY174 and an anti-amp glow function. It can reduce the IMX174 sensor's amplifier glow significantly in long exposure.
The most interesting thing is the QHY174's optional Precision-time functions. It allow two QHY174 has the same timebase up to microseconds at anywhere of the world.
QHY174 will record the gloable shutter exposure starting and ending time at the microsecond precision. The time base is sync to the GPS timing. So it is very high accurate. In order to guarantee the physical exposure start and ending time, QHY174 has a built-in LED pulse calibration circuit at the 1 microsecond (us)  precision.
This function is coming of a small optional GPS module for QHY174. This module is tiny and can be installed inside the camera.

Two working mode

Master mode: The camera is free running and the internal 10MHz GPS synced clock will measure the shutter open and close time.
Slave mode: You can input a target start time and the interval period of two frames. For example: You want three cameras in different position(maybe thousands of kilometer) to start exposure at 2016.3.9.UTC 14:00:00.000000 and the interval time is 0.100000sec.
After you input this value. All the three camera will wait till this time and start video recording. The exposure time should be
2016.3.9 UTC 14:00:00.000033
2016.3.9 UTC 14:00:00.100033
2016.3.9 UTC 14:00:00.200033
2016.3.9 UTC 14:00:00.300033
(The 0.00033 is a global delay of the cmos shutter).

The price of uncooled QHY174GPS is USD939.  The price of cooled QHY174-GPS is USD1239.

Recording software for QHY174MGPS/QHY174MGPS.The time stamp and other GPS information is embeded into the image. The software can decode it at realtime and display these information on left. Since these data is embeded in the image. So it will never lost if you keep the image as original.

Windows Driver and Software Download
Camera Driver
Update Check
SharpCap Patch

Ascom guide, Ascom Capture, and Ascom 2st are all packaged into one driver called AScome3InOne, which means after you finished installing this driver, Ascom guide, Ascom Capture, and Ascom 2st would be installed on your computer.
ASCOM Platform
NativeWDM Driver
BroadCast Driver
(QHY174GPS only)

Mac Driver and Software Download
Driver and Software Cloud Drive Download

QHY174GPS in Science Project

More than 20 QHY174GPS camera was selected by NASA New Horizon Team for the MU69 Occultation Imaging. The data will be using for the new horizon mu69 flyby on 2019.1.1. Misson successed and the MU69 occultation was record by five of them. 

"This effort, spanning six months, three spacecraft, 24 portable ground-based telescopes, and NASA's SOFIA airborne observatory was the most challenging stellar occultation in the history of astronomy, but we did it!" said Alan Stern, New Horizons principal investigator from SwRI.

QHY174GPS installed in the Tibet Station of NAOC for Meteor Imaging