Deep-sky astrophotography
Two-stage TEC, ΔT up to 42 °C helps control thermal noise during long exposures of galaxies, nebulae and star clusters.
Deep-sky cooled
ToupTek ATR2110C is a cooled deep-sky camera using the SC2110 sensor, with 2.3 MP (1920 × 1200), 12 µm pixels and 120 fps. Designed for deep-sky astrophotography, one-shot colour deep-sky imaging, high-resolution galaxy and lunar imaging. Available from Precisometer for professional astronomy systems.

Application context
Choose the ATR2110C when your telescope and target benefit from APS-C class, 23.2 × 14.6 mm sensor coverage, 12 µm sampling, two-stage TEC, ΔT up to 42 °C and 380–690 nm response.
Two-stage TEC, ΔT up to 42 °C helps control thermal noise during long exposures of galaxies, nebulae and star clusters.
The colour SC2110 sensor captures broadband targets without a separate LRGB filter sequence.
12 µm pixels balance image scale and detail for appropriately matched telescope focal lengths.
12-bit acquisition, 72 dB dynamic range and regulated cooling support repeatable quantitative observations.
Specifications
34 specification rows
The ATR2110C is an astronomy camera in the ATR DSO cooled series, built around a SmartSens SC2110 color CMOS sensor, 2.3 MP (1920 × 1200) resolution, 12 µm pixels, frame rates up to 120 fps, a USB 3.0 interface. It suits deep-sky cooled where reliable imaging performance and interface compatibility matter.
| Model | ATR2110C |
|---|---|
| Status | Current |
| Application | Deep-sky cooled |
| Sensor | SmartSens SC2110 color CMOS |
| Sensor Type | Large-pixel color CMOS |
| Sensor Size | APS-C class, 23.2 × 14.6 mm |
| Resolution | 2.3 MP (1920 × 1200) |
| Pixel Size | 12 µm |
| Shutter Type | Rolling shutter |
| Frame Rate | 120 fps |
|---|---|
| ADC | 12-bit |
| Peak QE | >89% |
| Dynamic Range | 72 dB |
| Read Noise | 5.01–3.67 e⁻ |
| Full Well | 17 ke⁻ |
| Spectral Range | 380–690 nm |
| Interface | USB 3.0 |
|---|---|
| Mount | M42 / M54 astronomy adapters |
| Cooling | Two-stage TEC, ΔT up to 42 °C |
| Legacy Model Name | ATR3CMOS02300KPA |
|---|---|
| Sensor Diagonal | 27.4mm |
| LCG Read Noise | 5.01-3.67e- |
| HCG Read Noise | 0.61-0.4e- |
| Maximum SNR | 50dB |
| Frame Buffer | 512MB |
| Sensor Chamber Window | IR-cut/AR window |
| Back Focal Distance | 17.5mm |
| Protective Window | IR/AR |
| Color Filter Array | RGGB |
| DDR3 Buffer | 512MB (4Gb) |
| Max Exposure | 0.1ms - 3600s (1 hour) |
| Power Supply | DC 12V / 3.3A |
| Back Focus Distance | 17.5mm |
| Weight | 0.577kg |
Technical media
Official sensor-response, performance, and mechanical imagery for the ATR2110C.



System integration
Use these checks to connect ATR2110C to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
Technical FAQ
Mount: M42 / M54 astronomy adapters. Use a lens image circle that covers the sensor and check flange distance before adding C/CS, F-mount or M42 adapters.
Sensor: SmartSens SC2110 color CMOS · Sensor Type: Large-pixel 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.
Frame Rate: 120 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.
Dynamic Range: 72 dB · Read Noise: 5.01–3.67 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.
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
Compare ATR2110C with the closest available models in the ATR DSO cooled family.
| Selection parameter | ATR2110C (current) | ATR183M | ATR2600C |
|---|---|---|---|
| Sensor | SmartSens SC2110 color CMOS | Sony IMX183 monochrome CMOS | Sony IMX571 color CMOS |
| Resolution | 2.3 MP (1920 × 1200) | 19.8 MP (5440 × 3648) | 26 MP (6224 × 4168) |
| Sensor size | APS-C class, 23.2 × 14.6 mm | 1-inch, 13.06 × 8.76 mm | APS-C, 23.4 × 15.7 mm |
| Pixel size / frame rate | 12 µm | 2.4 µm | 3.76 µm |
The SC2110 appears in 4 models across the catalogue, differing in cooling, shutter, interface and colour filter. Compare them side by side before settling on a variant.
Compare the ATR2110C with other ATR DSO cooled 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