QHYCCD QHY5III585M (IMX585) USB3.2 Type-C Mono Planetary & Guiding Camera (Ver.2)

The QHY5III585M is a seriously capable “do-it-all” camera for planetary, lunar, solar, and guiding, built around the Sony IMX585 STARVIS 2 sensor. You get a large 1/1.2" format, 2.9µm pixels, excellent near-infrared sensitivity, and a big jump in dynamic range—plus QHY’s practical Ver.2 improvements like USB-C, a 512MB DDR3 buffer, a compact 8mm backfocus (no adapter) for OAG friendliness, and a standard ST-4 guide port that’s easy to replace if you ever lose the cable.

• Sony IMX585 STARVIS 2 (BSI) sensor for high sensitivity and strong HDR performance
• Excellent near-IR response (great for IR-pass planetary work and high-contrast lunar/solar imaging)
• Large 1/1.2" sensor with 8.4MP resolution (3856×2180) for easier framing and more guide stars
• Zero glow characteristics for clean captures
• Big full well capacity (listed 52ke-) for improved dynamic range and highlight control
• Ultra-low read noise (listed 0.77e- to 8e-) for better fine detail and smoother stacks
• 512MB DDR3 built-in image buffer to reduce dropped frames and ease USB transfer pressure during high-speed capture
• USB 3.2 Gen1 Type-C interface for durability and convenient cabling (strongly recommended: high-quality USB-C cable)
• OAG-friendly backfocus: 8mm without adapter / 17mm with adapter
• Flexible telescope/lens use with interchangeable top glass and included adapters
  • 1.25" nosepiece support + use of 1.25" filters
  • Includes CS and C-mount options for adapting lenses
• Standard ST-4 guide port (easy to replace cables, no proprietary weirdness)
• Status indicator LED on the rear for diagnostics (off during normal use to avoid light contamination)
• Filters included: IR850nm filter plus IR-cut filter included (per provided info)

Specifications

• Model: QHY5III585M (Ver.2)
• Sensor: Sony IMX585
• Sensor type: BSI (STARVIS 2)
• Sensor size: 1/1.2"
• Pixel size: 2.9µm × 2.9µm
• Resolution: 3856 × 2180
• Effective pixels: 8.4 MP
• Full well capacity: 52ke-
• Read noise: 0.77e- to 8e-
• ADC: 12-bit (output as 16-bit and 8-bit)
• Built-in buffer: 512MB DDR3
• Frame rates (full frame): 41.5 FPS @ 8-bit, 23.5 FPS @ 16-bit
• ROI frame rates (full resolution):
  • 1080 lines: 82 FPS @ 8-bit, 47 FPS @ 16-bit
  • 640 lines: 135 FPS @ 8-bit, 79 FPS @ 16-bit
  • After driver update 2025-06-13 (ROI improved):
    • 1080 lines: 124.5 FPS @ 8-bit, 124.5 FPS @ 16-bit
    • 640 lines: 199 FPS @ 8-bit, 199 FPS @ 16-bit
• Exposure range: 11µs – 900s
• Shutter: Electronic rolling shutter
• Computer interface: USB 3.2 Gen1 Type-C
• Guide port: Standard ST-4
• Telescope/lens interface: 1.25", plus CS and C-mount support
• Optical window:
  • Mono (M): AR anti-reflection glass
  • Color (C): IR-cut filter
• Included filters: IR850nm filter, IR-cut filter included
• Back focal length: 17mm with adapter, 8mm without adapter
• Weight: 90g

What’s in the box?

• QHYCCD QHY5III585M camera (Ver.2)
• IR850nm filter
• IR-cut filter (included per provided info)
• 1.25" adapter / threads for telescope connection and 1.25" filter use
• CS adapter (standard accessory)
• C-mount adapter (standard accessory)

Software and Docs

• QHYCCD drivers (required for full performance; ROI FPS improvements referenced with driver update 2025-06-13)
• Compatible with common planetary capture and guiding software that supports QHY cameras via USB3 and ST-4 guiding