The ZWO ASI533MC Pro Color is a compact, cooled color camera with square sensor for deep-sky and planetary photography. The Sony IMX533 CMOS sensor with back-illuminated technology provides high sensitivity, low noise and sharp images of galaxies, nebulae and the moon.
With a square sensor (3008 × 3008 pixels) of 9 MP and a pixel size of 3.76 µm, this camera is ideal for use with fast telescopes such as apochromats, Newtons or HyperStar systems. With a QE up to 80%, active Peltier cooling and 14-bit ADC, this camera offers performance previously known only from CCD cameras - but with much higher sensitivity.
Key features
- Sony IMX533 CMOS sensor (9 MP) - square format, 3008 × 3008 pixels
- Pixel size 3.76 µm - suitable for f/4 to f/8 telescopes
- Active Peltier cooling - up to 35 °C below ambient temperature
- QE to 80% - thanks to back-illuminated technology
- 14-bit ADC and low noise - For deep and detailed shots
- USB 3.0 & DDR3 buffer - fast and stable data transfer
Applications
✓ Deep-sky photography: nebulae, galaxies, clusters ✓ Planets and Moon: sharp details thanks to high resolution and low noise ✓ Video astronomy (EAA) and short-exposure shots ✓ Color images without LRGB filter wheels
Specifications
| Feature | Value |
|---|---|
| Sensor | Sony IMX533 CMOS (Color) |
| Resolution | 3008 × 3008 (9 MP) |
| Pixel size | 3.76 µm |
| Sensor format | 11.3 × 11.3 mm |
| Diagonal | 16 mm |
| Bit depth | 14-bit |
| Full Well Capacity | 50.000 e- |
| Reading Noise | 1,0 - 3,8 e- |
| FPS | 20 (full resolution) |
| Interfaces | USB 3.0, USB 2.0 |
| Cooling | Yes (Peltier) |
| Telescope connection | 1,25″, 2″, T2 |
| Weight | 410 g |
| Dimensions | Ø78 mm × 85 mm |
| Power supply | 12V DC |
Additional info
✓ Includes clear AR glass filter (IR transmissive) ✓ Comes with cables, adapters and transport case ✓ Works on Windows, Mac and Linux
Note
Always use a suitable power supply (12V DC) for cooling, even when not actively cooling. For visual color reproduction, an IR-cut filter is recommended.











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