ToupTek GPM662C Color Guide Camera

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- Back-illuminated Sony IMX662 color CMOS sensor with enhanced near-infrared light capture capabilities
- Utilizes High Conversion Gain (HCG) mode to deliver ultra-low read noise down to 0.48e-, improving signal-to-noise ratio
- Offers flexible dual-gain allowing seamless switching to Low Conversion Gain (LCG) mode to expand the full well capacity to 39ke- and protect bright planetary or solar details from overexposing
- Compact 1.25-inch build, built-in frame buffer to help data transfer/amp glow, and a ST4 autoguider port for direct mount connection
ToupTek GPM Series Guide Camera!
Professional autoguiding camera featuring Sony IMX662 STARVIS 2 sensor with exceptional infrared sensitivity for precise telescope tracking and versatile astronomical imaging. The GPM662C features Sony's cutting-edge STARVIS 2 back-illuminated sensor technology, delivering exceptional infrared sensitivity with a peak QE over 91%. The 2.9μm pixel size provides the perfect balance between resolution and light gathering capability for planetary imaging!




Sony IMX622 Color Sensor Technology
The GPM622C features Sony's IMX622 color back-illuminated sensor with exceptional infrared sensitivity. With read noise as low as 0.48e⁻, full well capacity of 39.03ke⁻, and dynamic range reaching 75.2dB, the GPM622C delivers outstanding performance for astronomical applications. The color sensor provides natural color reproduction while maintaining excellent sensitivity across the visible spectrum.


Exceptional Infrared Sensitivity
The GPM662C excels in capturing infrared light with remarkably high quantum efficiency at 650nm wavelength. This superior IR sensitivity makes it ideal for planetary imaging, revealing details invisible to standard cameras.


Built-in ST4 Autoguider Interface
The GPM622C features a built-in standard ST4 autoguider port for easy connection to the autoguider. This design simplifies guiding system configuration, reduces cable connections, and improves system reliability. Compatible with mainstream guiding software like PHD Guiding, MetaGuide, Nebulosity, MaxIm DL, and others for precise autoguiding control.


Comprehensive Connection Options
The GPM series cameras offer versatile connection options designed for seamless integration with various telescope setups and guiding systems. The diagram below illustrates the complete connection architecture, showing how the camera interfaces with your mount, computer, and other astronomical equipment for optimal guiding performance.


12-bit ADC and Intelligent ROI
Hardware-based ROI increases frame rates for guide star tracking. Digital binning from 1x1 to 8x8 in both stacking and averaging modes. Integrated memory buffer ensures stable data transmission and effectively reduces amp-glow, maintaining consistent frame rates even with multiple cameras. The built-in ST4 port enables direct mount control for auto-guiding, making the GPM662C an ideal dual-purpose guide and imaging camera.
Specifications
-
Sensor: Sony IMX662 Color Back-illuminated CMOS (STARVIS 2)
-
Image Resolution: 2.1 Megapixels (1920 x 1080)
-
Pixel Size: 2.9 µm x 2.9 µm
-
Sensor Size: 1/2.8-inch (6.45 mm Diagonal)
-
Imaging Area: 5.57 mm x 3.13 mm (0.22 in x 0.12 in)
-
Shutter Type: Rolling Shutter
-
ADC Bit Depth: 12-bit
-
Frame Buffer: Built-in
-
Gain Modes: HCG/LCG dual mode switching
-
Spectral Response Range: 380–1100 nm (depending on whether the IR-cut or AR protective glass variant is chosen)
-
Maximum Frame Rate (USB 2.0):
-
12-bit: 3.9 FPS @ 1920 x 1080
-
8-bit: 7.8 FPS @ 1920 x 1080
-
-
Read Noise:
-
HCG Mode: 0.48 – 1.06 e⁻
-
LCG Mode: 2.33 – 6.81 e⁻
-
-
Full Well Capacity:
-
HCG Mode: 3.91 ke⁻
-
LCG Mode: 39.03 ke⁻
-
-
Peak Quantum Efficiency: >91%
-
Dynamic Range: 75.2 dB
-
Signal-to-Noise Ratio: 45.9 dB
-
Exposure Time Range: 0.1 ms – 1000 s
-
Gain Range: 1x – 150x
-
Data Interface: USB 2.0 Type-C
-
Guide Interface: Built-in ST4 autoguider port
-
Camera Adapter: Standard 1.25-inch for telescope connection / Standard CS adapter for industrial lens
-
Back Focal Distance: 8.5 mm (17.5 mm with C-mount, 12.5 mm with CS-mount) / (0.33 in / 0.69 in / 0.49 in)
-
Protective Window: Available in IR-cut filter or AR multi-coating window versions
-
External Dimensions: Diameter 37 mm x Height 72.4 mm (1.46 in x 2.85 in)
-
Weight: 65.3 g (0.14 lb)
-
Cooling Method: Passive cooling
-
Supported Systems: Windows XP/Vista/7/8/10/11 (32 & 64 bit), Mac OS X, Linux, Android
-
SDK Support: Native C/C++, C#/VB.NET, Python, Java, DirectShow, Twain, etc.
Performance Analysis Charts
LCG Mode
Maximum full well capacity of 39ke⁻ for bright objects. Ideal for lunar and solar imaging with extended dynamic range.


HCG Mode
Optimized for faint objects with ultra-low read noise down to 0.48e⁻. Perfect for deep-sky imaging and capturing subtle planetary details.


Back Focus Distance


Interface Description
- Directly connects with 1.25-inch telescope eyepiece holders
- GPM with 1.25-inch extender can be inserted directly into 1.25-inch telescope eyepiece holders
- Standard C adapter connects to industrial C-mount adapter lenses
- Built-in ST4 autoguider port for easy connection to the autoguider
- USB 2.0 Type-C interface provides data transfer and power supply
- High-quality IR-CUT or AR protective window blocks IR and eliminates reflection
Other Information
- Country of Manufacture: China
ToupTek GPM Series Guide Camera!
Professional autoguiding camera featuring Sony IMX662 STARVIS 2 sensor with exceptional infrared sensitivity for precise telescope tracking and versatile astronomical imaging. The GPM662C features Sony's cutting-edge STARVIS 2 back-illuminated sensor technology, delivering exceptional infrared sensitivity with a peak QE over 91%. The 2.9μm pixel size provides the perfect balance between resolution and light gathering capability for planetary imaging!




Sony IMX622 Color Sensor Technology
The GPM622C features Sony's IMX622 color back-illuminated sensor with exceptional infrared sensitivity. With read noise as low as 0.48e⁻, full well capacity of 39.03ke⁻, and dynamic range reaching 75.2dB, the GPM622C delivers outstanding performance for astronomical applications. The color sensor provides natural color reproduction while maintaining excellent sensitivity across the visible spectrum.


Exceptional Infrared Sensitivity
The GPM662C excels in capturing infrared light with remarkably high quantum efficiency at 650nm wavelength. This superior IR sensitivity makes it ideal for planetary imaging, revealing details invisible to standard cameras.


Built-in ST4 Autoguider Interface
The GPM622C features a built-in standard ST4 autoguider port for easy connection to the autoguider. This design simplifies guiding system configuration, reduces cable connections, and improves system reliability. Compatible with mainstream guiding software like PHD Guiding, MetaGuide, Nebulosity, MaxIm DL, and others for precise autoguiding control.


Comprehensive Connection Options
The GPM series cameras offer versatile connection options designed for seamless integration with various telescope setups and guiding systems. The diagram below illustrates the complete connection architecture, showing how the camera interfaces with your mount, computer, and other astronomical equipment for optimal guiding performance.


12-bit ADC and Intelligent ROI
Hardware-based ROI increases frame rates for guide star tracking. Digital binning from 1x1 to 8x8 in both stacking and averaging modes. Integrated memory buffer ensures stable data transmission and effectively reduces amp-glow, maintaining consistent frame rates even with multiple cameras. The built-in ST4 port enables direct mount control for auto-guiding, making the GPM662C an ideal dual-purpose guide and imaging camera.
Specifications
-
Sensor: Sony IMX662 Color Back-illuminated CMOS (STARVIS 2)
-
Image Resolution: 2.1 Megapixels (1920 x 1080)
-
Pixel Size: 2.9 µm x 2.9 µm
-
Sensor Size: 1/2.8-inch (6.45 mm Diagonal)
-
Imaging Area: 5.57 mm x 3.13 mm (0.22 in x 0.12 in)
-
Shutter Type: Rolling Shutter
-
ADC Bit Depth: 12-bit
-
Frame Buffer: Built-in
-
Gain Modes: HCG/LCG dual mode switching
-
Spectral Response Range: 380–1100 nm (depending on whether the IR-cut or AR protective glass variant is chosen)
-
Maximum Frame Rate (USB 2.0):
-
12-bit: 3.9 FPS @ 1920 x 1080
-
8-bit: 7.8 FPS @ 1920 x 1080
-
-
Read Noise:
-
HCG Mode: 0.48 – 1.06 e⁻
-
LCG Mode: 2.33 – 6.81 e⁻
-
-
Full Well Capacity:
-
HCG Mode: 3.91 ke⁻
-
LCG Mode: 39.03 ke⁻
-
-
Peak Quantum Efficiency: >91%
-
Dynamic Range: 75.2 dB
-
Signal-to-Noise Ratio: 45.9 dB
-
Exposure Time Range: 0.1 ms – 1000 s
-
Gain Range: 1x – 150x
-
Data Interface: USB 2.0 Type-C
-
Guide Interface: Built-in ST4 autoguider port
-
Camera Adapter: Standard 1.25-inch for telescope connection / Standard CS adapter for industrial lens
-
Back Focal Distance: 8.5 mm (17.5 mm with C-mount, 12.5 mm with CS-mount) / (0.33 in / 0.69 in / 0.49 in)
-
Protective Window: Available in IR-cut filter or AR multi-coating window versions
-
External Dimensions: Diameter 37 mm x Height 72.4 mm (1.46 in x 2.85 in)
-
Weight: 65.3 g (0.14 lb)
-
Cooling Method: Passive cooling
-
Supported Systems: Windows XP/Vista/7/8/10/11 (32 & 64 bit), Mac OS X, Linux, Android
-
SDK Support: Native C/C++, C#/VB.NET, Python, Java, DirectShow, Twain, etc.
Performance Analysis Charts
LCG Mode
Maximum full well capacity of 39ke⁻ for bright objects. Ideal for lunar and solar imaging with extended dynamic range.


HCG Mode
Optimized for faint objects with ultra-low read noise down to 0.48e⁻. Perfect for deep-sky imaging and capturing subtle planetary details.


Back Focus Distance


Interface Description
- Directly connects with 1.25-inch telescope eyepiece holders
- GPM with 1.25-inch extender can be inserted directly into 1.25-inch telescope eyepiece holders
- Standard C adapter connects to industrial C-mount adapter lenses
- Built-in ST4 autoguider port for easy connection to the autoguider
- USB 2.0 Type-C interface provides data transfer and power supply
- High-quality IR-CUT or AR protective window blocks IR and eliminates reflection
- 1x GPM622C Color Guide Camera Main Unit (with Type-C-Mount inner)
- 1x USB 2.0 Data Cable (2 meters, Type-A to Type-C)
- 1x ST4 Guide Cable (2 meters)
- 1x 1.25-inch Nosepiece
- 1x CS-mount Ring
- Back-illuminated Sony IMX662 color CMOS sensor with enhanced near-infrared light capture capabilities
- Utilizes High Conversion Gain (HCG) mode to deliver ultra-low read noise down to 0.48e-, improving signal-to-noise ratio
- Offers flexible dual-gain allowing seamless switching to Low Conversion Gain (LCG) mode to expand the full well capacity to 39ke- and protect bright planetary or solar details from overexposing
- Compact 1.25-inch build, built-in frame buffer to help data transfer/amp glow, and a ST4 autoguider port for direct mount connection
ToupTek GPM Series Guide Camera!
Professional autoguiding camera featuring Sony IMX662 STARVIS 2 sensor with exceptional infrared sensitivity for precise telescope tracking and versatile astronomical imaging. The GPM662C features Sony's cutting-edge STARVIS 2 back-illuminated sensor technology, delivering exceptional infrared sensitivity with a peak QE over 91%. The 2.9μm pixel size provides the perfect balance between resolution and light gathering capability for planetary imaging!




Sony IMX622 Color Sensor Technology
The GPM622C features Sony's IMX622 color back-illuminated sensor with exceptional infrared sensitivity. With read noise as low as 0.48e⁻, full well capacity of 39.03ke⁻, and dynamic range reaching 75.2dB, the GPM622C delivers outstanding performance for astronomical applications. The color sensor provides natural color reproduction while maintaining excellent sensitivity across the visible spectrum.


Exceptional Infrared Sensitivity
The GPM662C excels in capturing infrared light with remarkably high quantum efficiency at 650nm wavelength. This superior IR sensitivity makes it ideal for planetary imaging, revealing details invisible to standard cameras.


Built-in ST4 Autoguider Interface
The GPM622C features a built-in standard ST4 autoguider port for easy connection to the autoguider. This design simplifies guiding system configuration, reduces cable connections, and improves system reliability. Compatible with mainstream guiding software like PHD Guiding, MetaGuide, Nebulosity, MaxIm DL, and others for precise autoguiding control.


Comprehensive Connection Options
The GPM series cameras offer versatile connection options designed for seamless integration with various telescope setups and guiding systems. The diagram below illustrates the complete connection architecture, showing how the camera interfaces with your mount, computer, and other astronomical equipment for optimal guiding performance.


12-bit ADC and Intelligent ROI
Hardware-based ROI increases frame rates for guide star tracking. Digital binning from 1x1 to 8x8 in both stacking and averaging modes. Integrated memory buffer ensures stable data transmission and effectively reduces amp-glow, maintaining consistent frame rates even with multiple cameras. The built-in ST4 port enables direct mount control for auto-guiding, making the GPM662C an ideal dual-purpose guide and imaging camera.
Specifications
-
Sensor: Sony IMX662 Color Back-illuminated CMOS (STARVIS 2)
-
Image Resolution: 2.1 Megapixels (1920 x 1080)
-
Pixel Size: 2.9 µm x 2.9 µm
-
Sensor Size: 1/2.8-inch (6.45 mm Diagonal)
-
Imaging Area: 5.57 mm x 3.13 mm (0.22 in x 0.12 in)
-
Shutter Type: Rolling Shutter
-
ADC Bit Depth: 12-bit
-
Frame Buffer: Built-in
-
Gain Modes: HCG/LCG dual mode switching
-
Spectral Response Range: 380–1100 nm (depending on whether the IR-cut or AR protective glass variant is chosen)
-
Maximum Frame Rate (USB 2.0):
-
12-bit: 3.9 FPS @ 1920 x 1080
-
8-bit: 7.8 FPS @ 1920 x 1080
-
-
Read Noise:
-
HCG Mode: 0.48 – 1.06 e⁻
-
LCG Mode: 2.33 – 6.81 e⁻
-
-
Full Well Capacity:
-
HCG Mode: 3.91 ke⁻
-
LCG Mode: 39.03 ke⁻
-
-
Peak Quantum Efficiency: >91%
-
Dynamic Range: 75.2 dB
-
Signal-to-Noise Ratio: 45.9 dB
-
Exposure Time Range: 0.1 ms – 1000 s
-
Gain Range: 1x – 150x
-
Data Interface: USB 2.0 Type-C
-
Guide Interface: Built-in ST4 autoguider port
-
Camera Adapter: Standard 1.25-inch for telescope connection / Standard CS adapter for industrial lens
-
Back Focal Distance: 8.5 mm (17.5 mm with C-mount, 12.5 mm with CS-mount) / (0.33 in / 0.69 in / 0.49 in)
-
Protective Window: Available in IR-cut filter or AR multi-coating window versions
-
External Dimensions: Diameter 37 mm x Height 72.4 mm (1.46 in x 2.85 in)
-
Weight: 65.3 g (0.14 lb)
-
Cooling Method: Passive cooling
-
Supported Systems: Windows XP/Vista/7/8/10/11 (32 & 64 bit), Mac OS X, Linux, Android
-
SDK Support: Native C/C++, C#/VB.NET, Python, Java, DirectShow, Twain, etc.
Performance Analysis Charts
LCG Mode
Maximum full well capacity of 39ke⁻ for bright objects. Ideal for lunar and solar imaging with extended dynamic range.


HCG Mode
Optimized for faint objects with ultra-low read noise down to 0.48e⁻. Perfect for deep-sky imaging and capturing subtle planetary details.


Back Focus Distance


Interface Description
- Directly connects with 1.25-inch telescope eyepiece holders
- GPM with 1.25-inch extender can be inserted directly into 1.25-inch telescope eyepiece holders
- Standard C adapter connects to industrial C-mount adapter lenses
- Built-in ST4 autoguider port for easy connection to the autoguider
- USB 2.0 Type-C interface provides data transfer and power supply
- High-quality IR-CUT or AR protective window blocks IR and eliminates reflection
Other Information
- Country of Manufacture: China
- 1x GPM622C Color Guide Camera Main Unit (with Type-C-Mount inner)
- 1x USB 2.0 Data Cable (2 meters, Type-A to Type-C)
- 1x ST4 Guide Cable (2 meters)
- 1x 1.25-inch Nosepiece
- 1x CS-mount Ring
