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Guide camera

GPCMOS02000KPA

ToupTek GPCMOS02000KPA 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.

Sensor
Sony IMX290 color CMOS
Sensor Type
STARVIS back-illuminated color CMOS
Resolution
2.1 MP (1920 × 1080)
Pixel Size
2.9 µm
Frame Rate
18 fps
Interface
USB 2.0 + ST4
GPCMOS02000KPA

Application context

Why this design is used

Choose the GPCMOS02000KPA when you need a compact IMX290-based guider with USB 2.0 + ST4, 2.9 µm pixels and 380–690 nm response.

Telescope autoguiding

USB 2.0 + ST4 connectivity supports guide corrections during long-exposure astrophotography.

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

IMX290 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.

Specifications

GPCMOS02000KPA

23 specification rows

The GPCMOS02000KPA is an astronomy camera in the GPCMOS guide series, built around a Sony IMX290 color 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.

Sensor & Imaging

ModelGPCMOS02000KPA
StatusDiscontinued / legacy support
ApplicationGuide camera
SensorSony IMX290 color CMOS
Sensor TypeSTARVIS back-illuminated color CMOS
Sensor Size1/2.8-inch, 5.57 × 3.13 mm
Resolution2.1 MP (1920 × 1080)
Pixel Size2.9 µm
Shutter TypeRolling shutter

Performance

Frame Rate18 fps
ADC12-bit
Peak QE>81%
Dynamic Range82 dB
Read Noise0.84–0.53 e⁻
Full Well11.2 ke⁻
Spectral Range380–690 nm

Interface & Thermal

InterfaceUSB 2.0 + ST4
Mount1.25-inch telescope nosepiece / CS-mount
CoolingPassive cooling

Additional Published Specifications

Sensor Diagonal6.39mm
Maximum SNR40dB
Protective WindowIR/AR
Color Filter ArrayRGGB

Technical media

Performance graphs and technical drawings

Official sensor-response, performance, and mechanical imagery for the GPCMOS02000KPA.

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System integration

Integration and compatibility

Use these checks to connect GPCMOS02000KPA to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.

Lens and microscope interface
Mount: 1.25-inch telescope nosepiece / CS-mount
Use a lens image circle that covers the sensor and check flange distance before adding C/CS, F-mount or M42 adapters.
Sensor and sampling
Sensor: Sony IMX290 color CMOS · Sensor Type: STARVIS back-illuminated color CMOS
Match pixel pitch to the diffraction-limited spot the optics deliver. Sampling finer than the optics resolve multiplies data volume without adding information; sampling coarser discards resolution you have paid for.
Interface and data rate
Frame Rate: 18 fps · Interface: USB 2.0 + ST4
Confirm the host can sustain the interface bandwidth continuously, not in burst. A camera that outruns the write path stalls acquisition rather than dropping quietly to a lower rate.
Cooling and noise floor
Dynamic Range: 82 dB · Read Noise: 0.84–0.53 e⁻
Judge these figures at the exposure time you will actually use. Cooling matters where dark current accumulates over seconds; read noise dominates short exposures where it never does.

Technical FAQ

Integration questions for GPCMOS02000KPA

What lens mount is required for the GPCMOS02000KPA?

Mount: 1.25-inch telescope nosepiece / CS-mount. Use a lens image circle that covers the sensor and check flange distance before adding C/CS, F-mount or M42 adapters.

What sensor and pixel pitch does the GPCMOS02000KPA use?

Sensor: Sony IMX290 color CMOS · Sensor Type: STARVIS back-illuminated color CMOS. Match pixel pitch to the diffraction-limited spot the optics deliver. Sampling finer than the optics resolve multiplies data volume without adding information; sampling coarser discards resolution you have paid for.

How does the GPCMOS02000KPA connect to the acquisition computer?

Frame Rate: 18 fps · Interface: USB 2.0 + ST4. Confirm the host can sustain the interface bandwidth continuously, not in burst. A camera that outruns the write path stalls acquisition rather than dropping quietly to a lower rate.

What is the noise performance of the GPCMOS02000KPA?

Dynamic Range: 82 dB · Read Noise: 0.84–0.53 e⁻. Judge these figures at the exposure time you will actually use. Cooling matters where dark current accumulates over seconds; read noise dominates short exposures where it never does.

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.

Open camera finder

Zoom lenses for the GPCMOS02000KPA

See which of our C-mount zoom lenses suit this sensor, with the field of view, µm per pixel and depth of field at each zoom setting.

Model selection

Nearby series comparison

Compare GPCMOS02000KPA with the closest available models in the GPCMOS guide family.

Selection parameterGPCMOS02000KPA (current)GPCMOS02000KMAGPCMOS01200KPF
SensorSony IMX290 color CMOSSony IMX290 monochrome CMOSSony IMX225 color CMOS
Resolution2.1 MP (1920 × 1080)2.1 MP (1920 × 1080)1.2 MP (1280 × 960)
Sensor size1/2.8-inch, 5.57 × 3.13 mm1/2.8-inch, 5.57 × 3.13 mm1/3-inch, 4.9 × 3.7 mm
Pixel size / frame rate2.9 µm2.9 µm3.75 µm

Other cameras on the IMX290 sensor

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.