Deep-sky astrophotography
Two-stage TEC, ΔT ≥45 °C helps control thermal noise during long exposures of galaxies, nebulae and star clusters.
Deep-sky cooled
ToupTek ATR183M is a cooled deep-sky camera using the IMX183 sensor, with 19.8 MP (5440 × 3648), 2.4 µm pixels and 18 fps. Designed for deep-sky astrophotography, narrowband nebula imaging, high-resolution galaxy and lunar imaging. Available from Precisometer for professional astronomy systems in the Benelux.

Applications & selection
Two-stage TEC, ΔT ≥45 °C helps control thermal noise during long exposures of galaxies, nebulae and star clusters.
The monochrome IMX183 sensor is suited to H-alpha, O III and S II filter workflows.
2.4 µm pixels balance image scale and detail for appropriately matched telescope focal lengths.
12-bit acquisition, 75 dB dynamic range and regulated cooling support repeatable quantitative observations.
Choose the ATR183M when your telescope and target benefit from 1-inch, 13.06 × 8.76 mm sensor coverage, 2.4 µm sampling, two-stage TEC, ΔT ≥45 °C and 380–1100 nm response.
Specifications
31 specification rows
The ATR183M is an astronomy camera in the ATR DSO cooled series, built around a Sony IMX183 monochrome CMOS sensor, 19.8 MP (5440 × 3648) resolution, 2.4 µm pixels, frame rates up to 18 fps, a USB 3.0 interface. It suits deep-sky cooled where reliable imaging performance and interface compatibility matter.
| Model | ATR183M |
|---|---|
| Status | Current |
| Application | Deep-sky cooled |
| 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 |
| Frame Rate | 18 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 | USB 3.0 |
|---|---|
| Mount | M42 / M54 astronomy adapters |
| Cooling | Two-stage TEC, ΔT ≥45 °C |
| Legacy Model Name | ATR3CMOS20000KMA |
|---|---|
| Sensor Diagonal | 15.72mm |
| LCG Read Noise | 2.6-1.4e- |
| Maximum SNR | 41.6dB |
| Frame Buffer | 512MB |
| Sensor Chamber Window | Adjustable heating window |
| Back Focal Distance | 17.5mm/12.5mm |
| Protective Window | IR/AR |
| Color Filter Array | RGGB |
| DDR3 Buffer | 512MB |
| Max Exposure | Up to 1 hour |
| Power Supply | DC 12V / 3A |
Technical media
Official sensor-response, performance, and mechanical imagery for the ATR183M.



Tell us your sensor, resolution, spectral range, frame-rate, interface, and software requirements and we will confirm the matching configuration and lead time.
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.
Compare the ATR183M with other ATR DSO cooled models and astronomy cameras in the range.
Choosing a camera
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