QHY533C The QHY533C is a cooled one-shot colour astronomy camera using SONY IMX533. The back-illuminated IMX533 provides approximately 9-megapixel capture with 3.76 µm pixels, a 14-bit ADC and 58 ke full well. QHY publishes a 3008 × 3028 total readout array including overscan and optical-black pixels; this is not labelled as the active image area.
Manufacturer model: QHY533C · Specifications checked against manufacturer data on 2026-11-03
The QHY533C is a cooled one-shot colour astronomy camera using SONY IMX533. The back-illuminated IMX533 provides approximately 9-megapixel capture with 3.76 µm pixels, a 14-bit ADC and 58 ke full well. QHY publishes a 3008 × 3028 total readout array including overscan and optical-black pixels; this is not labelled as the active image area.
Sensor readout and image transfer
QHY’s published ADC specification is 14-bit A/D. A 1GB DDR3 Memory 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.
Cooling and dew control
Manufacturer cooling specification: Dual Stage TEC cooler:; – Long exposures (> 1 second) typically -35℃ below ambient; – Short exposure (< 1second) high FPS, typically -30℃ 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.
Optical connections
The listed interface is M42 or M48 using the specified adapter, with backfocus of 17 mm ±0.2 mm. Add the optical contribution of the selected adapters, filter wheel and guider when planning the telescope connection.
Power and software
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. Manufacturer power-supply guidance: regulated 12 V supply capable of at least 4 A; original supplied adapter preferred Install the matching QHY All-in-One driver/SDK and compatible capture software.
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.
85345
Datasheet
ADC en uitgang
14-bit A/D
Versterkergloed
Nearly Zero Amplifier Glow
Antidauwverwarming
Available
Backfocus
17 mm ±0.2 mm
Kleurmodus
Colour
Computerinterface
USB3.0
Besturingssoftware
QHY All-in-One drivers/SDK; compatible ASCOM and capture software such as NINA, SharpCap and EZCAP_QT
Koeling
Dual Stage TEC cooler:; – Long exposures (＞ 1 second) typically -35℃ below ambient; – Short exposure (＜ 1second) high FPS, typically -30℃ below ambient（Test temperature +20℃）
QHY533C The QHY533C is a cooled one-shot colour astronomy camera using SONY IMX533. The back-illuminated IMX533 provides approximately 9-megapixel capture with 3.76 µm pixels, a 14-bit ADC and 58 ke full well. QHY publishes a 3008 × 3028 total readout array including overscan and optical-black pixels; this is not labelled as the active image area.
Manufacturer model: QHY533C · Specifications checked against manufacturer data on 2026-11-03
