QHY174GPS Mono The QHY174GPS is a cooled monochrome camera combining Sony’s IMX174 global-shutter sensor with GPS-referenced exposure timing. The 1920 × 1200 array uses 5.86 µm pixels on an 11.25 × 7.03 mm imaging area.
Manufacturer model: QHY174GPS Mono · Specifications checked against manufacturer data on 2026-11-03
The QHY174GPS is a cooled monochrome camera combining Sony’s IMX174 global-shutter sensor with GPS-referenced exposure timing. The 1920 × 1200 array uses 5.86 µm pixels on an 11.25 × 7.03 mm imaging area.
Timing and scientific imaging
QHY specifies 1 µs GPS UTC timestamp precision for applications such as stellar occultations and other time-sensitive observations. The global shutter exposes the frame simultaneously. This figure is the manufacturer’s timing specification rather than a physical test of an individual camera.
Sensor performance
The published full well exceeds 32 ke. Read noise is 5.3 electrons at gain 0, 2.8 electrons at 60% gain and 1.6 electrons at full gain. Capture rates reach 138 fps at 8-bit or 75.1 fps at 16-bit output over USB 3.0; the ADC itself is 12-bit.
Cooling and connection
Two-stage TEC cooling is specified at 40 °C below ambient in a 20 °C test environment. The camera has an AR+AR window, anti-dew heater, 4-pin filter-wheel connection, 17.5 mm backfocus and 450 g published weight.
Power and data
Supply external 12 V before USB connection. QHY’s guide gives an 11–13.8 V operating range and additionally advises keeping the input at or above 11.5 V. Published consumption is 27 W at full cooling, 12 W at 50% and 3 W with cooling off.
Use the named-model manufacturer connection diagram and the backfocus reference for the selected adapter. Readout mode and output format affect frame rate, noise and full-well capacity.
Additional specifications
Effective image area
11.25mm*7.03mm (1/1.2inch)
Filter wheel interface
4PIN QHYCCD CFW Port
Image buffer
Built-in 512KB Flash Memory. 100KB user-accessible space for stellar ROI frames for analysis of exoplanet investigation, occultations, atmospheric seeing measurement, focus , optic analysis etc. Support 100*100 image x 10rames 50*50 image x40frames. 25*25 image x160frames 10*10 image * 1000 frames（based on 8bit images）
Others
GPS Time-Stamp Precision: 1 micro-second of the GPS UTC clock
GPS timestamp precision
1 µs relative to GPS UTC clock
Timing use
Exposure timing and occultation work; precision is the manufacturer specification, not a physical timing test
61679
Fiche technique
CAN et sortie
12-bit A/D (output as 16bit and 8bit)
Chauffage anti-buée
Available
Backfocus
17.5mm
Mode couleur
Monochrome
Interface ordinateur
USB3.0
Refroidissement
Dual Stage TEC cooler: -40℃ below ambient, test temperature +20℃)
Courant d'obscurité
0.224e-/pixel/sec @-20℃
Surface de pixels effective
1920*1200
Pixels effectifs
2 Megapixels
Plage de temps de pose
5μs-900sec
Cadences en pleine image
USB3.0: 138FPS@8bit 75.1FPS@16bit
Capacité de puits 1×1 / 2×2 / 3×3
＞32ke-
Modèle
QHY174GPS Mono
Taille des pixels
5.86μm*5.86μm
Alimentation
27W/100% 12W/50% 3W/0%
Entrée d'alimentation
12 V external supply; manufacturer guide specifies 11–13.8 V and separately advises not below 11.5 V
Fenêtre de protection
AR+AR High Quality Multi-Layer Anti-Reflection Coating
QHY174GPS Mono The QHY174GPS is a cooled monochrome camera combining Sony’s IMX174 global-shutter sensor with GPS-referenced exposure timing. The 1920 × 1200 array uses 5.86 µm pixels on an 11.25 × 7.03 mm imaging area.
Manufacturer model: QHY174GPS Mono · Specifications checked against manufacturer data on 2026-11-03
