Deep-sky astrophotography
Two-stage TEC, ΔT ≥42 °C helps control thermal noise during long exposures of galaxies, nebulae and star clusters.
Deep-sky cooled
ATR294M
ToupTek ATR294M is a cooled deep-sky camera using the IMX492 sensor, with 11.6 MP (4128 × 2808), 4.63 µm pixels and 33 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.
- Sensor
- Sony IMX492 monochrome CMOS
- Sensor Type
- Back-illuminated 4/3-inch monochrome CMOS
- Resolution
- 11.6 MP (4128 × 2808)
- Pixel Size
- 4.63 µm
- Frame Rate
- 33 fps
- Interface
- USB 3.0
Applications & selection
ATR294M applications
Narrowband nebula imaging
The monochrome IMX492 sensor is suited to H-alpha, O III and S II filter workflows.
High-resolution galaxy and lunar imaging
4.63 µm pixels balance image scale and detail for appropriately matched telescope focal lengths.
Photometry and time-series imaging
14-bit acquisition, 78.8 dB dynamic range and regulated cooling support repeatable quantitative observations.
When to choose this camera
Choose the ATR294M when your telescope and target benefit from 4/3-inch, 19.11 × 13.0 mm sensor coverage, 4.63 µm sampling, two-stage TEC, ΔT ≥42 °C and 380–1100 nm response.
Specifications
ATR294M
32 specification rows
The ATR294M is an astronomy camera in the ATR DSO cooled series, built around a Sony IMX492 monochrome CMOS sensor, 11.6 MP (4128 × 2808) resolution, 4.63 µm pixels, frame rates up to 33 fps, a USB 3.0 interface. It suits deep-sky cooled where reliable imaging performance and interface compatibility matter.
Sensor & Imaging
| Model | ATR294M |
|---|---|
| Status | Current |
| Application | Deep-sky cooled |
| Sensor | Sony IMX492 monochrome CMOS |
| Sensor Type | Back-illuminated 4/3-inch monochrome CMOS |
| Sensor Size | 4/3-inch, 19.11 × 13.0 mm |
| Resolution | 11.6 MP (4128 × 2808) |
| Pixel Size | 4.63 µm |
| Shutter Type | Rolling shutter |
Performance
| Frame Rate | 33 fps |
|---|---|
| ADC | 14-bit |
| Peak QE | >80% |
| Dynamic Range | 78.8 dB |
| Read Noise | 7.53–1.42 e⁻ |
| Full Well | 66 ke⁻ |
| Spectral Range | 380–1100 nm |
Interface & Thermal
| Interface | USB 3.0 |
|---|---|
| Mount | M42 / M54 astronomy adapters |
| Cooling | Two-stage TEC, ΔT ≥42 °C |
Additional Published Specifications
| Legacy Model Name | ATR3CMOS10300KMA |
|---|---|
| Sensor Diagonal | 23.1mm |
| LCG Read Noise | 7.53-6.42 e- |
| Maximum SNR | 48.2dB |
| Frame Buffer | 512MB |
| Sensor Chamber Window | Adjustable heating window |
| Back Focal Distance | 17.5mm/12.5mm |
| Protective Window | IR/AR |
| Color Filter Array | RGGB |
| Gain Modes | HCG (High Conversion Gain) / LCG (Low Conversion Gain) |
| DDR3 Buffer | 512MB |
| Max Exposure | Up to 1 hour |
| Power Supply | DC 12V / 3A |
Technical media
Performance graphs and technical drawings
Official sensor-response, performance, and mechanical imagery for the ATR294M.
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 IMX492 sensor
The IMX492 appears in 10 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 ATR294M with other ATR DSO cooled models and astronomy cameras in the range.
- ATR992MATR DSO cooled · Astronomy CamerasDeep-sky cooled
- ATR2110CATR DSO cooled · Astronomy CamerasDeep-sky cooled
- ATR2600MATR DSO cooled · Astronomy CamerasDeep-sky cooled
- ATR2600CATR DSO cooled · Astronomy CamerasDeep-sky cooled
- ATR183MATR DSO cooled · Astronomy CamerasDeep-sky cooled
- ATR183CATR DSO cooled · Astronomy CamerasDeep-sky cooled
