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Home / Products / Astronomy Camera / GPCMOS C+1.25” Mount USB2.0 CMOS Guiding
GPCMOS C+1.25” Mount USB2.0 CMOS Guiding Astronomy Camera

GPCMOS C+1.25” Mount USB2.0 CMOS Guiding Astronomy Camera

GPCMOS C+1.25” Mount USB2.0 CMOS Guiding Astronomy Camera is a CMOS-based guiding camera designed for astrophotography and telescope automation. It features a 1.25-inch outer interface for telescope eyepiece mounting and a standard C-mount inner interface for industrial lenses. The camera supports USB2.0 data transfer, includes an ST4 auto guider port, and is compatible with native, ASCOM, and WDM drivers for third-party astrophotography software.

  • 1.25-inch outer interface for direct mounting on telescope eyepiece holders
  • Standard C-mount inner interface for compatibility with industrial lenses
  • ST4 auto guider port for direct connection to telescope guiding systems
  • USB2.0 interface with low latency and stable data transfer
  • Supports multiple operating systems including Windows, Linux, macOS, and Android
  • High-speed capture with exposure times from 0.105ms to 1000s (varies by model)
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Technical features

  • CMOS sensor with ultra-high performance image pickup
  • 1.25-inch outer interface for telescope eyepiece mounting
  • Standard C-mount inner interface for industrial lens attachment
  • Built-in ST4 auto guider port for direct telescope connection
  • USB2.0 data transfer interface with 5V DC power from PC
  • Spectral range 380–650nm (with IR-cut filter), 350–1050nm (with double-side AR coating)
  • White balance: manual temp/tint adjustment or NA for monochrome sensors
  • ROI (Region of Interest) support for faster frame rates

Who it is for

  • Amateur and professional astrophotographers requiring precise guiding
  • Telescope integrators building automated imaging systems
  • Research institutions using small to medium telescopes for observational projects
  • Distributors sourcing guiding cameras for astronomy equipment kits

Specifications

ModelGPCMOS02000KPA / GPCMOS02000KMA / GPCMOS02000KPB / GPCMOS01200KPB / GPCMOS01200KMB / GPCMOS01200KPC
SensorIMX290(C) / IMX290(M) / IMX327(C) / AR0130(C) / AR0130(M) / IMX224(C)
Sensor Size1/2.8" (5.60×3.10 mm) / 1/3" (4.80×3.60 mm)
Pixel Size2.9×2.9 μm / 3.75×3.75 μm
Responsivity1300mv (1/30s) / 1200mv (F8.0, 1/30s) / 2519mv (1/30s) / 5.5v/lux-sec / 6.5v/lux-sec / 2040mv (1/30s)
Dark Signal0.15mv (1/30s) / 85.3dB / 44dB
Frame Rate16@1920×1080 / 18@1920×1080 / 29@1280×960 / 30@640×480 / 27@1280×960 / 54@640×480
Binning1×1 / 2×2
Exposure Time0.105ms~1000s / 0.4ms~800s
InterfaceUSB2.0, ST4 port
Power SupplyDC 5V via PC USB port
Operating SystemWindows XP/Vista/7/8/10 (32/64 bit), Linux, macOS
Spectral Range380–650nm (IR-cut filter), 350–1050nm (double-side AR coating)

Use guide

  • Select model based on required resolution, sensitivity, and exposure range
  • Use 1.25-inch interface for direct mounting on telescope eyepiece holders
  • Attach C-mount lens for industrial or custom optical configurations
  • Connect ST4 port to telescope guiding system for real-time tracking correction
  • Install native, ASCOM, or WDM drivers for compatibility with astrophotography software

FAQ

What is the interface type for telescope mounting?
Standard 1.25-inch outer interface for direct fit on telescope eyepiece holders.
Can I use a C-mount lens with this camera?
Yes. The inner interface is standard C-mount for compatibility with industrial lenses.
Does it support ST4 guiding?
Yes. The camera has a built-in ST4 auto guider port for direct connection to telescope guiding systems.
What is the power source?
DC 5V from a PC USB port. No external power supply required.
Which operating systems are supported?
Microsoft Windows XP/Vista/7/8/10 (32/64 bit), Linux, macOS, and Android via SDK.

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