Telescope autoguiding
USB 2.0 + ST4 connectivity supports guide corrections during long-exposure astrophotography.
Guide camera
ToupTek GPCMOS02000KMA is a astronomy guide camera using the IMX290 sensor, with 2.1 MP (1920 × 1080), 2.9 µm pixels and 18 fps. Designed for telescope autoguiding, guide-scope and off-axis guiding, long-exposure tracking. Legacy model retained for replacement, compatibility and support enquiries.

Applications & selection
USB 2.0 + ST4 connectivity supports guide corrections during long-exposure astrophotography.
1.25-inch telescope nosepiece / CS-mount compatibility suits compact guide scopes and appropriately adapted off-axis guiders.
IMX290 sensitivity helps maintain stable star centroids for deep-sky imaging sessions.
380–1100 nm monochrome response can improve guide-star availability with suitable optics and filters.
Choose the GPCMOS02000KMA when you need a compact IMX290-based guider with USB 2.0 + ST4, 2.9 µm pixels and 380–1100 nm response.
Specifications
23 specification rows
The GPCMOS02000KMA is an astronomy camera in the GPCMOS guide series, built around a Sony IMX290 monochrome CMOS sensor, 2.1 MP (1920 × 1080) resolution, 2.9 µm pixels, frame rates up to 18 fps, a USB 2.0 + ST4 interface. It suits guide camera where reliable imaging performance and interface compatibility matter.
| Model | GPCMOS02000KMA |
|---|---|
| Status | Discontinued / legacy support |
| Application | Guide camera |
| Sensor | Sony IMX290 monochrome CMOS |
| Sensor Type | STARVIS back-illuminated monochrome 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 |
| Frame Rate | 18 fps |
|---|---|
| ADC | 12-bit |
| Peak QE | >81% |
| Dynamic Range | 82 dB |
| Read Noise | 0.84–0.53 e⁻ |
| Full Well | 11.2 ke⁻ |
| Spectral Range | 380–1100 nm |
| Interface | USB 2.0 + ST4 |
|---|---|
| Mount | 1.25-inch telescope nosepiece / CS-mount |
| Cooling | Passive cooling |
| Sensor Diagonal | 6.39mm |
|---|---|
| Maximum SNR | 40dB |
| Protective Window | IR/AR |
| Color Filter Array | RGGB |
Technical media
Official sensor-response, performance, and mechanical imagery for the GPCMOS02000KMA.



Tell us your sensor, resolution, spectral range, frame-rate, interface, and software requirements and we will confirm the matching configuration and lead time.
The IMX290 appears in 5 models across the catalogue, differing in cooling, shutter, interface and colour filter. Compare them side by side before settling on a variant.
Compare the GPCMOS02000KMA with other GPCMOS guide models and astronomy cameras in the range.
Choosing a camera
How to tell whether this sensor is the right technology for your photon budget, and what to check before committing.
Scientific camerasWhich sensor technology your photon budget actually needs, why rolling and global shutter answer different questions, and how to check the data can leave the camera at all.
Open guide
Scientific camerasHow physical charge transport versus in-pixel voltage conversion dictates readout speed, read noise, blooming, fill factor, and fixed-pattern noise in scientific detectors.
Open guide
Scientific imagingCalculate object-space pixel size, field of view, Rayleigh resolution, and sampling using real MAX and sMAX sensor formats.
Open guide