Telescope autoguiding
USB 2.0 Type-C + ST4 connectivity supports guide corrections during long-exposure astrophotography.
Guide camera
GPM662C
ToupTek GPM662C is a astronomy guide camera using the IMX662 sensor, with 2.1 MP (1920 × 1080), 2.9 µm pixels and 17.8 fps. Designed for telescope autoguiding, guide-scope and off-axis guiding, long-exposure tracking. Available from Precisometer for professional astronomy systems in the Benelux.
- Sensor
- Sony IMX662 color CMOS
- Sensor Type
- STARVIS 2 back-illuminated color CMOS
- Resolution
- 2.1 MP (1920 × 1080)
- Pixel Size
- 2.9 µm
- Frame Rate
- 17.8 fps
- Interface
- USB 2.0 Type-C + ST4
Applications & selection
GPM662C applications
Guide-scope and off-axis guiding
1.25-inch telescope nosepiece / CS-mount compatibility suits compact guide scopes and appropriately adapted off-axis guiders.
Long-exposure tracking
IMX662 sensitivity helps maintain stable star centroids for deep-sky imaging sessions.
Lunar and planetary acquisition
2.1 MP (1920 × 1080) capture provides a secondary short-exposure imaging role in compact telescope systems.
When to choose this camera
Choose the GPM662C when you need a compact IMX662-based guider with USB 2.0 Type-C + ST4, 2.9 µm pixels and 380–690 nm response.
Specifications
GPM662C
36 specification rows
The GPM662C is an astronomy camera in the GPM guide series, built around a Sony IMX662 color CMOS sensor, 2.1 MP (1920 × 1080) resolution, 2.9 µm pixels, frame rates up to 17.8 fps, a USB 2.0 Type-C + ST4 interface. It suits guide camera where reliable imaging performance and interface compatibility matter.
Sensor & Imaging
| Model | GPM662C |
|---|---|
| Status | Current |
| Application | Guide camera |
| Sensor | Sony IMX662 color CMOS |
| Sensor Type | STARVIS 2 back-illuminated color CMOS |
| Sensor Size | 1/2.8-inch, 5.57 × 3.13 mm |
| Resolution | 2.1 MP (1920 × 1080) |
| Pixel Size | 2.9 µm |
| Shutter Type | Rolling shutter |
Performance
| Frame Rate | 17.8 fps |
|---|---|
| ADC | 12-bit |
| Peak QE | >91% |
| Dynamic Range | 75.2 dB |
| Read Noise | 6.81–0.48 e⁻ |
| Full Well | 39.034 ke⁻ |
| Spectral Range | 380–690 nm |
Interface & Thermal
| Interface | USB 2.0 Type-C + ST4 |
|---|---|
| Mount | 1.25-inch telescope nosepiece / CS-mount |
| Cooling | Passive cooling |
Additional Published Specifications
| Sensor Diagonal | 6.45mm |
|---|---|
| Maximum SNR | 45.9dB |
| Back Focal Distance / Adapter | Yes |
| Protective Window | IR/AR |
| Color Filter Array | RGGB |
| Maximum Frame Rate (USB 2.0) | 12-bit: 8.9 FPS @ 1920×1080 8-bit: 17.8 FPS @ 1920×1080 |
| Exposure Time Range | 0.1ms - 1000s |
| Gain Range | 1× - 150× |
| Frame Buffer | Built-in |
| Gain Modes | HCG/LCG dual mode switching |
| 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 | 8.5mm (17.5mm with C-mount, 12.5mm with CS-mount) |
| External Dimensions | Diameter 37mm × Height 72.4mm |
| Weight | 65.3 grams |
| 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. |
Technical media
Performance graphs and technical drawings
Official sensor-response, performance, and mechanical imagery for the GPM662C.
Need help choosing?
Tell us your sensor, resolution, spectral range, frame-rate, interface, and software requirements and we will confirm the matching configuration and lead time.
Other cameras on the IMX662 sensor
The IMX662 appears in 4 models across the catalogue, differing in cooling, shutter, interface and colour filter. Compare them side by side before settling on a variant.
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