QHY5III678M The QHY5III678M is an uncooled monochrome planetary and guide camera built around Sony IMX678. It records 3856*2180 pixels with 2.0μm*2.0μm sampling and 12-bit (output as 16-bit and 8-bit) conversion/output.
Manufacturer model: QHY5III678M · Specifications checked against manufacturer data on 2026-11-03
The QHY5III678M is an uncooled monochrome planetary and guide camera built around Sony IMX678. It records 3856*2180 pixels with 2.0μm*2.0μm sampling and 12-bit (output as 16-bit and 8-bit) conversion/output.
Capture performance
QHY lists 9ke- full well and 0.57e- to 3.3e- read noise. The published full-frame rate is 43FPS@8bit, 22FPS@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
Extra filter
IR850nm Filter Included
Recommended cable
QHY standard USB Type-C data cable
88395
Datasheet
ADC en uitgang
12-bit (output as 16-bit and 8-bit)
Backfocus
17mm (with adapter);; 8mm（without adapter）
Kleurmodus
Monochrome
Computerinterface
USB3.0 Type-C
Gekoeld
No
Effectief pixeloppervlak
3856*2180
Effectieve pixels
8.4 Megapixels
Bereik belichtingstijd
11μs-900sec
Beeldsnelheden volledig beeld
43FPS@8bit, 22FPS@16bit
Full-wellcapaciteit
9ke-
Guidepoort
Standard ST-4 Style
Beeldbuffer
512MB DDR3 Memory
Model
QHY5III678M
Optische aansluiting
1.25-inch, with CS and C-Mount
Optisch venster
AR Anti-reflection Glass (5III678M）; IR-Cut filter (5III678C)
QHY5III678M The QHY5III678M is an uncooled monochrome planetary and guide camera built around Sony IMX678. It records 3856*2180 pixels with 2.0μm*2.0μm sampling and 12-bit (output as 16-bit and 8-bit) conversion/output.
Manufacturer model: QHY5III678M · Specifications checked against manufacturer data on 2026-11-03
