ToupTek GPM174M Mono Guide Camera
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- Back-illuminated Sony IMX174 mono CMOS sensor with enhanced near-infrared light capture capabilities
- Utilizes High Conversion Gain (HCG) mode to deliver ultra-low read noise down to 0.70e-, 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 33.4ke- 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!
A professional mono guide camera featuring the Sony IMX249 monochrome CMOS sensor, offering exceptionally strong capability to capture faint signals with a high QE value at 500nm. It features a large 1/1.2-inch sensor format, a high full well capacity of 33.4ke⁻, wide dynamic range, high sensitivity, and low readout noise down to 3.96e⁻. Utilizing a global shutter to eliminate artifacts on fast-moving objects, this results in outstanding performance in precise autoguiding, planetary photography, as well as in solar and lunar photography!
Sony IMX294 Mono Sensor Technology
Featuring a Sony IMX249 CMOS mono sensor (1/1.2” size, 11.3mm 7.03mm), offering a high resolution of 1920 x 1200 pixels. With a pixel size of 5.86 μm x 5.86 μm, this guide camera excels at capturing faint signals (with a high QE value at 500nm)
Astrophotography Performance
GPM174M High Sensitivity: the QE peak value is about 89%. The built-in frame buffer stabilizes data transmission and significantly reduces amp-glow. By temporarily storing image data, it prevents rushed transmission to the receiver, ensuring consistent performance even when multiple cameras are in use. This feature maintains the camera’s high frame rate for optimal imaging during complex astrophotography sessions.
Built-in ST4 Autoguider Interface
The GPM174M 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.
Specifications:
-
Sensor: Sony IMX249 Monochrome Back-illuminated CMOS
-
Image Resolution: 2.3 Megapixels (1920 x 1200)
-
Pixel Size: 5.86 µm x 5.86 µm
-
Sensor Size: 1/1.2-inch (13.31 mm Diagonal)
-
Imaging Area: 11.3 mm x 7.03 mm (0.44 in x 0.28 in)
-
Shutter Type: Global Shutter
-
ADC Bit Depth: 12-bit
-
Frame Buffer: Built-in
-
Spectral Response Range: 380–1100 nm (with AR protection window)
-
Maximum Frame Rate (USB 2.0):
-
12-bit: 8.5 FPS @ 1920 x 1200
-
8-bit: 16.2 FPS @ 1920 x 1200
-
-
Read Noise: 3.96 – 6.48 e-
-
Full Well Capacity: 33.4 ke-
-
Peak Quantum Efficiency: >89%
-
Dynamic Range: 72.0 dB
-
Signal-to-Noise Ratio: 45.0 dB
-
Exposure Time Range: 0.42 ms – 1000 s
-
Gain Range: 1x – 480x
-
Data Interface: USB 2.0 Type-C
-
Guide Interface: Built-in ST4 autoguider port
-
Camera Adapter: Standard 1.25-inch for telescope connection / Standard C 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: AR-window
-
External Dimensions: Diameter 37 mm x Height 72.4 mm (1.46 in x 2.85 in)
-
Weight: 70 g (0.15 lb)
-
Cooling Method: Passive cooling
-
Supported Systems: Windows XP/Vista/7/8/10/11 (32 & 64 bit), Mac OS X, Linux
-
SDK Support: Native C/C++, C#/VB.NET, Python, Java, DirectShow, Twain, etc.
Performance Analysis Charts
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!
A professional mono guide camera featuring the Sony IMX249 monochrome CMOS sensor, offering exceptionally strong capability to capture faint signals with a high QE value at 500nm. It features a large 1/1.2-inch sensor format, a high full well capacity of 33.4ke⁻, wide dynamic range, high sensitivity, and low readout noise down to 3.96e⁻. Utilizing a global shutter to eliminate artifacts on fast-moving objects, this results in outstanding performance in precise autoguiding, planetary photography, as well as in solar and lunar photography!
Sony IMX294 Mono Sensor Technology
Featuring a Sony IMX249 CMOS mono sensor (1/1.2” size, 11.3mm 7.03mm), offering a high resolution of 1920 x 1200 pixels. With a pixel size of 5.86 μm x 5.86 μm, this guide camera excels at capturing faint signals (with a high QE value at 500nm)
Astrophotography Performance
GPM174M High Sensitivity: the QE peak value is about 89%. The built-in frame buffer stabilizes data transmission and significantly reduces amp-glow. By temporarily storing image data, it prevents rushed transmission to the receiver, ensuring consistent performance even when multiple cameras are in use. This feature maintains the camera’s high frame rate for optimal imaging during complex astrophotography sessions.
Built-in ST4 Autoguider Interface
The GPM174M 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.
Specifications:
-
Sensor: Sony IMX249 Monochrome Back-illuminated CMOS
-
Image Resolution: 2.3 Megapixels (1920 x 1200)
-
Pixel Size: 5.86 µm x 5.86 µm
-
Sensor Size: 1/1.2-inch (13.31 mm Diagonal)
-
Imaging Area: 11.3 mm x 7.03 mm (0.44 in x 0.28 in)
-
Shutter Type: Global Shutter
-
ADC Bit Depth: 12-bit
-
Frame Buffer: Built-in
-
Spectral Response Range: 380–1100 nm (with AR protection window)
-
Maximum Frame Rate (USB 2.0):
-
12-bit: 8.5 FPS @ 1920 x 1200
-
8-bit: 16.2 FPS @ 1920 x 1200
-
-
Read Noise: 3.96 – 6.48 e-
-
Full Well Capacity: 33.4 ke-
-
Peak Quantum Efficiency: >89%
-
Dynamic Range: 72.0 dB
-
Signal-to-Noise Ratio: 45.0 dB
-
Exposure Time Range: 0.42 ms – 1000 s
-
Gain Range: 1x – 480x
-
Data Interface: USB 2.0 Type-C
-
Guide Interface: Built-in ST4 autoguider port
-
Camera Adapter: Standard 1.25-inch for telescope connection / Standard C 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: AR-window
-
External Dimensions: Diameter 37 mm x Height 72.4 mm (1.46 in x 2.85 in)
-
Weight: 70 g (0.15 lb)
-
Cooling Method: Passive cooling
-
Supported Systems: Windows XP/Vista/7/8/10/11 (32 & 64 bit), Mac OS X, Linux
-
SDK Support: Native C/C++, C#/VB.NET, Python, Java, DirectShow, Twain, etc.
Performance Analysis Charts
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 GPM174M 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 IMX174 mono CMOS sensor with enhanced near-infrared light capture capabilities
- Utilizes High Conversion Gain (HCG) mode to deliver ultra-low read noise down to 0.70e-, 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 33.4ke- 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!
A professional mono guide camera featuring the Sony IMX249 monochrome CMOS sensor, offering exceptionally strong capability to capture faint signals with a high QE value at 500nm. It features a large 1/1.2-inch sensor format, a high full well capacity of 33.4ke⁻, wide dynamic range, high sensitivity, and low readout noise down to 3.96e⁻. Utilizing a global shutter to eliminate artifacts on fast-moving objects, this results in outstanding performance in precise autoguiding, planetary photography, as well as in solar and lunar photography!
Sony IMX294 Mono Sensor Technology
Featuring a Sony IMX249 CMOS mono sensor (1/1.2” size, 11.3mm 7.03mm), offering a high resolution of 1920 x 1200 pixels. With a pixel size of 5.86 μm x 5.86 μm, this guide camera excels at capturing faint signals (with a high QE value at 500nm)
Astrophotography Performance
GPM174M High Sensitivity: the QE peak value is about 89%. The built-in frame buffer stabilizes data transmission and significantly reduces amp-glow. By temporarily storing image data, it prevents rushed transmission to the receiver, ensuring consistent performance even when multiple cameras are in use. This feature maintains the camera’s high frame rate for optimal imaging during complex astrophotography sessions.
Built-in ST4 Autoguider Interface
The GPM174M 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.
Specifications:
-
Sensor: Sony IMX249 Monochrome Back-illuminated CMOS
-
Image Resolution: 2.3 Megapixels (1920 x 1200)
-
Pixel Size: 5.86 µm x 5.86 µm
-
Sensor Size: 1/1.2-inch (13.31 mm Diagonal)
-
Imaging Area: 11.3 mm x 7.03 mm (0.44 in x 0.28 in)
-
Shutter Type: Global Shutter
-
ADC Bit Depth: 12-bit
-
Frame Buffer: Built-in
-
Spectral Response Range: 380–1100 nm (with AR protection window)
-
Maximum Frame Rate (USB 2.0):
-
12-bit: 8.5 FPS @ 1920 x 1200
-
8-bit: 16.2 FPS @ 1920 x 1200
-
-
Read Noise: 3.96 – 6.48 e-
-
Full Well Capacity: 33.4 ke-
-
Peak Quantum Efficiency: >89%
-
Dynamic Range: 72.0 dB
-
Signal-to-Noise Ratio: 45.0 dB
-
Exposure Time Range: 0.42 ms – 1000 s
-
Gain Range: 1x – 480x
-
Data Interface: USB 2.0 Type-C
-
Guide Interface: Built-in ST4 autoguider port
-
Camera Adapter: Standard 1.25-inch for telescope connection / Standard C 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: AR-window
-
External Dimensions: Diameter 37 mm x Height 72.4 mm (1.46 in x 2.85 in)
-
Weight: 70 g (0.15 lb)
-
Cooling Method: Passive cooling
-
Supported Systems: Windows XP/Vista/7/8/10/11 (32 & 64 bit), Mac OS X, Linux
-
SDK Support: Native C/C++, C#/VB.NET, Python, Java, DirectShow, Twain, etc.
Performance Analysis Charts
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 GPM174M 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
ToupTek GPM174M Mono Guide Camera