QHY174 M (GPS)

QHY174 M (GPS)

  • Optional GPS time and location data embedded in the image
  • Anti-dew heater to eliminate condensation and ice from forming on the camera
  • Anti-amp glow circuit to reduce the amplifier glow in long duration images


The QHY174GPS camera uses the 1/1.2-inch SONY IMX174 CMOS sensor with global shutter, 5.86um pixels,138FPS@1920*1200, high QE of 78%, and low read noise of 3-5e-. Unlike a rolling shutter, a global shutter guarantees that the exposure time for the whole image area is uniform, beginning and ending at exactly the same time. This type of shutter is ideal for high precision time-domain applications.

The QHY174GPS has a unique built-in GPS module that can sync with the atomic clock signals received from GPS satellites. The QHY174GPS can record the start and end of exposure time with 1us precision anywhere on earth. The QHY174GPS was selected by the NASA New Horizons Team to successfully captured the MU69 occultation in the Summer of 2017. The QHY174GPS uses 2-stage TEC cooling to significantly reduce dark current.

The IMX174 sensor normally has significant amplifier glow which will affect the entire image area in exposures of any significant length. However, QHYCCD has successfully incorporated our unique amplifier glow reduction technology into the design of the QHY174GPS camera to yield excellent results with this sensor.

The QHY174GPS is the best camera for the high precision time-based scientific projects. It includes two working modes. In Free Running Mode, the hardware records the GPS time and internal 1us calibrated time into the image header of every frame. In Multi-Site Sync Mode, users can control multiple cameras that are thousands of miles apart so that they start exposures at exactly the same time to the microsecond.

  • Mono Version: QHY174GPS_M
  • Sensor:  SONY IMX174 CMOS 
  • Pixel Size: 5.86um*5.86um
  • Effective Pixel Area: 1920*1200
  • Effective Pixels: 2 megapixels
  • Effective Image Area:11.25mm*7.03mm
  • Sensor Size: Typical 1/1.2 inch
  • QE: 78%
  • FullWell: >32ke-
  • AD Sample Depth: 12/10bit (output as 16/8bit)
  • Readout Noise: 5.3e-@Gain0%;  2.8e-@Gain60%; 1.6e-@Gain100%
  • System Gain: TBD
  • Unity Gain: TBD
  • Full Frame Rate and ROI Frame Rate: 138FPS@1936x1216; 260FPS@960x600; 490FPS@480x300

Note:QHYCCD has optimized the CMOS drive frequency and limit the max frame rate. The CMOS sensor may not work under the maximum 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
  • Exposure Time : 5us-900sec
  • Binning: 1x1, 2x2
  • Anti-Glow Control: Yes (Reduces amplifier glow significantly)
  • Shutter Type: Electric Global Shutter
  • Computer Interface: USB 3.0 Super Speed
  • 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: AR+AR High Quality Multi-Layer Anti-Reflection Coating
  • Guide Port: 6PIN RJ11 Guide Port
  • Color Wheel Port: 4PIN QHYCFW Socket
  • Back Focal Length: TBD
  • GPS version, Time-Stamp Precision: 1 micro-second of the GPS UTC clock
  • Weight: 450gram