QHY5III585M The QHY5III585M is an uncooled monochrome planetary and guide camera built around Sony IMX585. It records 3856*2180 pixels with 2.9μm*2.9μm sampling and 12-bit (output as 16-bit and 8-bit) conversion/output.
Manufacturer model: QHY5III585M · Specifications checked against manufacturer data on 2026-11-03
The QHY5III585M is an uncooled monochrome planetary and guide camera built around Sony IMX585. It records 3856*2180 pixels with 2.9μm*2.9μm sampling and 12-bit (output as 16-bit and 8-bit) conversion/output.
Capture performance
QHY lists 52ke- full well and 0.77e- to 8e- read noise. The published full-frame rate is 41.5FPS@8bit 23.5FPS @16bit. Region-of-interest capture raises frame rate by reading fewer sensor lines. The 512 MB DDR3 buffer reduces transfer pressure during high-speed recording.
Optical and guiding connections
The interface is 1.25-inch, with CS and C-Mount; the guide connection is Standard ST-4 Style. Backfocus is 17mm (with adapter); 8mm (without adapter). The AR window preserves broader wavelength transmission for external filter selection.
USB and physical format
The camera uses USB3.0 Type-C for image transfer and power, with a published weight of 90g. The second-generation design uses USB Type-C, a standard ST4-style guide connection and a status indicator. Use QHY’s recommended data cable.
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
Roi frame rates
Full Resolution 1080Lines, 82FPS@8bit, 47FPS@16bit; 640Lines, 135FPS@8bit, 79FPS@16bit Full Resolution (After updating the driver version 2025.6.13, the ROI frame rate is improved as follows); 1080Lines, 124.5FPS@8bit, 124.5FPS@16bit; 640Lines, 199FPS@8bit,199FPS@16bit
Extra filter
IR850nm Filter Included; IR-Cut filter Included
Recommended cable
QHY standard USB Type-C data cable
87709
Data sheet
ADC and output
12-bit (output as 16-bit and 8-bit)
Backfocus
17mm (with adapter);; 8mm（without adapter）
Colour mode
Monochrome
Computer interface
USB3.0 Type-C
Cooled
No
Effective pixel area
3856*2180
Effective pixels
8.4 Megapixels
Exposure time range
11μs-900sec
Full frame rates
41.5FPS@8bit 23.5FPS @16bit
Full well capacity
52ke-
Guide port
Standard ST-4 Style
Image buffer
512MB DDR3 Memory
Model
QHY5III585M
Optical connection
1.25-inch, with CS and C-Mount
Optical window
M: AR Anti-reflection Glass C: IR-Cut Filter
Pixel size
2.9μm*2.9μm
Power
Powered through USB; no TEC cooling supply
Protective window
AR anti-reflection glass
Read noise
0.77e- to 8e-
Sensor
Sony IMX585
Sensor illumination
BSI
Sensor size
1/1.2inch
Shutter
Electronic Rolling Shutter
Software
QHY All-in-One driver/SDK; SharpCap, compatible ASCOM software and guiding applications
Weight
90g
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QHY5III585M The QHY5III585M is an uncooled monochrome planetary and guide camera built around Sony IMX585. It records 3856*2180 pixels with 2.9μm*2.9μm sampling and 12-bit (output as 16-bit and 8-bit) conversion/output.
Manufacturer model: QHY5III585M · Specifications checked against manufacturer data on 2026-11-03
