Planetary lucky imaging
30 fps capture supports frame selection and stacking for Jupiter, Saturn, Mars and Venus.
Planetary
G3CMOS20000KMA
ToupTek G3CMOS20000KMA is a planetary astronomy camera using the IMX183 sensor, with 19.8 MP (5440 × 3648), 2.4 µm pixels and 30 fps. Designed for planetary lucky imaging, lunar surface imaging, narrowband and near-infrared imaging. Available from Precisometer for professional astronomy systems.
- Sensor
- Sony IMX183 monochrome CMOS
- Sensor Type
- Back-illuminated monochrome CMOS
- Resolution
- 19.8 MP (5440 × 3648)
- Pixel Size
- 2.4 µm
- Frame Rate
- 30 fps
- Interface
- USB 3.0
Application context
Why this design is used
Choose the G3CMOS20000KMA when 30 fps acquisition, 2.4 µm sampling and the IMX183 sensor match your telescope's focal length and seeing conditions.
Lunar surface imaging
2.4 µm pixels and 19.8 MP (5440 × 3648) resolution support detailed lunar mosaics and close-up imaging.
Narrowband and near-infrared imaging
380–1100 nm monochrome response supports filter-based seeing control and contrast enhancement.
Solar imaging with approved filtration
Can be used for solar capture only with an appropriate certified solar filter and safe observing setup.
Specifications
G3CMOS20000KMA
25 specification rows
The G3CMOS20000KMA is an astronomy camera in the G3CMOS planetary series, built around a Sony IMX183 monochrome CMOS sensor, 19.8 MP (5440 × 3648) resolution, 2.4 µm pixels, frame rates up to 30 fps, a USB 3.0 interface. It suits planetary where reliable imaging performance and interface compatibility matter.
Sensor & Imaging
| Model | G3CMOS20000KMA |
|---|---|
| Status | Current |
| Application | Planetary |
| Sensor | Sony IMX183 monochrome CMOS |
| Sensor Type | Back-illuminated monochrome CMOS |
| Sensor Size | 1-inch, 13.06 × 8.76 mm |
| Resolution | 19.8 MP (5440 × 3648) |
| Pixel Size | 2.4 µm |
| Shutter Type | Rolling shutter |
Performance
| Frame Rate | 30 fps |
|---|---|
| ADC | 12-bit |
| Peak QE | >84% |
| Dynamic Range | 75 dB |
| Read Noise | 2.6–1.4 e⁻ |
| Full Well | 15 ke⁻ |
| Spectral Range | 380–1100 nm |
Interface & Thermal
| Interface | USB 3.0 |
|---|---|
| Mount | Astronomy adapter / telescope interface |
| Cooling | Air-cooled |
Additional Published Specifications
| Sensor Diagonal | 15.72mm |
|---|---|
| Maximum SNR | 41.6dB |
| Frame Buffer | 512MB |
| Back Focal Distance | 17.5mm |
| Protective Window | IR/AR |
| Color Filter Array | RGGB |
Technical media
Performance graphs and technical drawings
Official sensor-response, performance, and mechanical imagery for the G3CMOS20000KMA.
System integration
Integration and compatibility
Use these checks to connect G3CMOS20000KMA 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: Astronomy adapter / telescope interface
- 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 IMX183 monochrome CMOS · Sensor Type: Back-illuminated monochrome 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: 30 fps · Interface: USB 3.0
- 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: 75 dB · Read Noise: 2.6–1.4 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 G3CMOS20000KMA
What lens mount is required for the G3CMOS20000KMA?
Mount: Astronomy adapter / telescope interface. 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 G3CMOS20000KMA use?
Sensor: Sony IMX183 monochrome CMOS · Sensor Type: Back-illuminated monochrome 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 G3CMOS20000KMA connect to the acquisition computer?
Frame Rate: 30 fps · Interface: USB 3.0. 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 G3CMOS20000KMA?
Dynamic Range: 75 dB · Read Noise: 2.6–1.4 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.
Model selection
Nearby series comparison
Compare G3CMOS20000KMA with the closest available models in the G3CMOS planetary family.
| Selection parameter | G3CMOS20000KMA (current) | G3CMOS10300KPA | G3CMOS20000KPA |
|---|---|---|---|
| Sensor | Sony IMX183 monochrome CMOS | Sony IMX294 color CMOS | Sony IMX183 color CMOS |
| Resolution | 19.8 MP (5440 × 3648) | 11.6 MP (4128 × 2808) | 19.8 MP (5440 × 3648) |
| Sensor size | 1-inch, 13.06 × 8.76 mm | 4/3-inch, 19.11 × 13.0 mm | 1-inch, 13.06 × 8.76 mm |
| Pixel size / frame rate | 2.4 µm | 4.63 µm | 2.4 µm |
Other cameras on the IMX183 sensor
The IMX183 appears in 21 models across the catalogue, differing in cooling, shutter, interface and colour filter. Compare them side by side before settling on a variant.
Related astronomy cameras
Compare the G3CMOS20000KMA with other G3CMOS planetary models and astronomy cameras in the range.
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