QHY183C The QHY183C is a cooled one-shot colour astronomy camera using SONY IMX183. The back-illuminated IMX183 sensor provides 20-megapixel capture with 2.4 µm pixels. QHY specifies 15.5 ke full well, read noise of 2.7 electrons at low gain and 1.0 electron at high gain. Its amplifier-glow reduction still requires appropriate calibration for long exposures.
Manufacturer model: QHY183C · Specifications checked against manufacturer data on 2026-11-03
The QHY183C is a cooled one-shot colour astronomy camera using SONY IMX183. The back-illuminated IMX183 sensor provides 20-megapixel capture with 2.4 µm pixels. QHY specifies 15.5 ke full well, read noise of 2.7 electrons at low gain and 1.0 electron at high gain. Its amplifier-glow reduction still requires appropriate calibration for long exposures.
QHY’s published ADC specification is 12bit (output as 16bit and 8bit). A 128MB DDR2 Buffer image buffer supports downloads through USB3.0. The colour sensor records colour in the same exposure sequence without separate RGB filter passes. Full-frame and region-of-interest rates depend on readout mode and output format; the table below preserves those conditions.
Manufacturer cooling specification: Dual Stage TEC cooler (-40℃ below ambient, test temperature +20℃）. Cooling reduces thermal signal during long exposures, and performance depends on ambient conditions and capture rate. The camera has the manufacturer-listed dew-control provisions shown in the table.
The listed interface is M42/0.75, with backfocus of 17.5mm（±0.2）. Add the optical contribution of the selected adapters, filter wheel and guider when planning the telescope connection.
Use an external 12 V supply before connecting the USB data cable. QHY’s operating guide specifies 11–13.8 V at the camera; cable voltage drop must be included in the power budget. Use the manufacturer-specified power adapter. Install the matching QHY All-in-One driver/SDK and compatible capture software.
QHYCCD manufacturer documentation
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.
| Effective pixel array | 5544*3684 |
|---|---|
| Full well | 15.5ke- |
Ficha técnica
QHY183C The QHY183C is a cooled one-shot colour astronomy camera using SONY IMX183. The back-illuminated IMX183 sensor provides 20-megapixel capture with 2.4 µm pixels. QHY specifies 15.5 ke full well, read noise of 2.7 electrons at low gain and 1.0 electron at high gain. Its amplifier-glow reduction still requires appropriate calibration for long exposures.
Manufacturer model: QHY183C · Specifications checked against manufacturer data on 2026-11-03
