Features Specifications Application Download Adapters Manual Back
Cooled USB 3.0 Planetary and Deep Sky COLDMOS Camera
QHYCCD pleased to introduce our QHY174M-GPS COLDMOS camera with optional GPS based precision time and location function, useful for imaging occultations, eclipses, meteors, and other scientific imaging requiring a highly precise recording of the time and location of the observation on every frame. 
The QHY174M has dual stage TE cooling to -45C below ambient with full anti-moisture control including heated optical window and removable silicon tube for the sensor chamber.  The camera has our 4-pin QHYCFW2 filter wheel control port and a 6-pin autoguider port.  The QHY174 also has an anti-amp glow function.  It can reduce the IMX174 sensor's amplifier glow significantly in long exposures.
The IMX174 sensor has a global shutter and is capable of high frame rates, both ideal features for a time-domain imaging camera.  In 2014 Sony introduced this device which featured a new technology called Pregius ?, redefining the global shutter CMOS imaging category and providing the best of both worlds with fast frame rate and CCD-like imaging performance.  The technology offers lower dark noise, which enables higher gains without compromising image quality, as well as higher quantum efficiency.  The global shutter also eliminates pixelization caused by atmospheric agitation when imaging the Planets and Moon at high frame rates.
An Independent detailed review of the QHY174 camera can be found at:
1.Evaluation of the Multipurpose QHY174M Cooled Monochrome Camera
Information on the QHY Anti-amp glow feature can be found here:
2.QHYCCD Anti-amp glow function for IMX174 now extended to very short exposure
QHY174M-GPS Time Domain Imager
With GPS PPS Synced High Precision Hardware Stamp
The QHY174's most interesting feature is the optional precision GPS time functions.  The QHY174M-GPS will record the global shutter exposure starting and ending time with microsecond precision.  Two QHY174 cameras, for example, each located anywhere in the world, can have the same time base, accurate to microseconds.  In order to guarantee the starting and ending time of the exposure, the QHY174 has a built-in LED pulse calibration circuit precise to 1 microsecond.
The QHY174 camera is designed to be an excellent planetary, lunar, solar and meteor capture video camera. With a 50mm F1.4 lens it will record mag 8 to mag 9 stars in live video recording at 30FPS (33ms exposure), several magnitudes fainter than can typically be seen with the naked eye.  The QHY174's high sensitivity with HD resolution will push video astronomy to new heights.
There main differentiating features of this camera over competing models:
1.    Optional GPS time and location data embedded in the image
2.    Anti-dew heater to eliminate condensation and ice from forming on the camera
3.    Anti-amp glow circuit to reduce the amplifier glow in long duration images
QHY174GPS has two working modes
Master mode:  In Master Mode, the camera is free running and the internal 10MHz GPS synced clock will measure and record the shutter's opening and closing time.
Slave mode:  In Slave Mode you can input a target start time and the interval period for two frames. For example: You want three cameras in different locations (maybe thousands of kilometers apart) to start an exposure at 2016.3.9.UTC 14:00:00.000000 and then to continue with exposures at the interval time of 0.100000 sec.  After you input these value, all the three cameras will wait until this time and then simultaneously start video recording, e.g.:
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 QHY174-GPS is USD939.  The price of cooled QHY174-GPS is USD1239.
QHY174-GPS New Horizon Science Project
More than 20 QHY174-GPS cameras were selected by NASA's New Horizon Team for imaging an occultation by MU69.  The data will be using for the New Horizon MU69 flyby in 2019.  The imaging mission was a success and the MU69 occultation event was record by five team members.   
"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.





Pixel Size 5.86um*5.86um
Effective Pixel Area
Effective Pixels
Effective Image Area
QE 78%
AD Sample Depth
12/10bit (output as 16bit and 8bit)
Sensor Size
Typical 1/1.2 inch
Full Frame Rate and ROI Frame Rate

*Note:QHYCCD has optimized the cmos drive freqency and limit the max frame rate. The CMOS sensor may not work under the maxium frequency to ensure the better noise performance. If you need the customized higher frame rate version please contact QHYCCD.
ROI Support Yes. Any Area ROI
Readout Noise 5.3e-@Gain0%      2.8e-@Gain60%      1.6e-@Gain100%
Dark Current  
Exposure Time Range 5us-900sec
Binning 1x1,2x2
Anti-Glow Control Yes (Reduces amplifier glow significantly)
Shutter Type Electric Global Shutter
Computer Interface USB3.0 Super Speed
Non-volatile memory / On camera storage Build-in total 512Kbytes Flash Memory. 100Kbytes user-accessible space
for stellar ROI frames for analysis of exoplanet investigation, occultations, atmospheric seeing messurement, focus , optic analysis etc. Support 100*100 image x 10rames   50*50 image x40frames. 25*25 image x160frames 10*10 image * 1000 frames (total frame numbers is based on 8bit image)
Cooling System
Dual Stage TEC cooler(-40C below ambient),Temperature Regulated
Anti-Dew Control
Connector for removable silicon gel tube
Heater board for CMOS chamber optical window
Telescope Interface
M42/0.75 / 2inch faster installer. Optional C-mount adapter
Optic Window Type

Mono Version:AR+AR High Quality Multi-Layer Anti-Reflection Coating

Color Version: IR cut coating

Guide Port 6PIN RJ11 Guide Port
Color Wheel Port 4PIN QHYCFW Socket
Back Focal Length
GPS version, Time-Stamp Precision 1 micro-second of the GPS UTC clock
Reference Price
QHY174M       USD939              
QHY174C       USD899             
QHY174M-GPS      USD1239   w/TE Cooling






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