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 ATR533M is a cooled deep-sky camera using the IMX533 sensor, with 9 MP (3008 × 3008), 3.76 µm pixels and 40 fps. Designed for deep-sky astrophotography, narrowband nebula imaging, high-resolution galaxy and lunar imaging. Available from Precisometer for professional astronomy systems.

Application context
Choose the ATR533M when your telescope and target benefit from 1-inch square, 11.31 × 11.31 mm sensor coverage, 3.76 µm sampling, two-stage TEC, ΔT ≥45 °C and 380–1100 nm response.
Two-stage TEC, ΔT ≥45 °C helps control thermal noise during long exposures of galaxies, nebulae and star clusters.
The monochrome IMX533 sensor is suited to H-alpha, O III and S II filter workflows.
3.76 µm pixels balance image scale and detail for appropriately matched telescope focal lengths.
14-bit acquisition, 92 dB dynamic range and regulated cooling support repeatable quantitative observations.
Specifications
32 specification rows
The ATR533M is an astronomy camera in the ATR DSO cooled series, built around a Sony IMX533 monochrome CMOS sensor, 9 MP (3008 × 3008) resolution, 3.76 µm pixels, frame rates up to 40 fps, a USB 3.0 interface. It suits deep-sky cooled where reliable imaging performance and interface compatibility matter.
| Model | ATR533M |
|---|---|
| Status | Current |
| Application | Deep-sky cooled |
| Sensor | Sony IMX533 monochrome CMOS |
| Sensor Type | Back-illuminated square monochrome CMOS |
| Sensor Size | 1-inch square, 11.31 × 11.31 mm |
| Resolution | 9 MP (3008 × 3008) |
| Pixel Size | 3.76 µm |
| Shutter Type | Rolling shutter |
| Frame Rate | 40 fps |
|---|---|
| ADC | 14-bit |
| Peak QE | >90% |
| Dynamic Range | 92 dB |
| Read Noise | 1.84–0.27 e⁻ |
| Full Well | 52 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 | ATR3CMOS09000KMA |
|---|---|
| Sensor Diagonal | 15.97mm |
| LCG Read Noise | 1.26 – 1.11 e- |
| Maximum SNR | 47dB |
| 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 / LCG with low noise & high full well options |
| 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 ATR533M.



System integration
Use these checks to connect ATR533M 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: Sony IMX533 monochrome CMOS · Sensor Type: Back-illuminated square 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.
Frame Rate: 40 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: 92 dB · Read Noise: 1.84–0.27 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 ATR533M with the closest available models in the ATR DSO cooled family.
| Selection parameter | ATR533M (current) | ATR533C | ATR585C |
|---|---|---|---|
| Sensor | Sony IMX533 monochrome CMOS | Sony IMX533 color CMOS | Sony IMX585 color CMOS |
| Resolution | 9 MP (3008 × 3008) | 9 MP (3008 × 3008) | 8.3 MP (3840 × 2160) |
| Sensor size | 1-inch square, 11.31 × 11.31 mm | 1-inch square, 11.31 × 11.31 mm | 1/1.2-inch, 11.2 × 6.3 mm |
| Pixel size / frame rate | 3.76 µm | 3.76 µm | 2.9 µm |
The IMX533 appears in 9 models across the catalogue, differing in cooling, shutter, interface and colour filter. Compare them side by side before settling on a variant.
Compare the ATR533M 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