ZWO ASI533MC Pro – 1” Color Astronomical Camera with TEC Cooling

The ZWO ASI533MC Pro is a cooled color astronomical camera based on the Sony IMX533 1” sensor. It is renowned for its complete lack of amp-glow, high sensitivity, and extremely low noise, making it one of the most popular color cameras for deep-sky astrophotography.

Key Features

• Sony IMX533 CMOS 1” color sensor (3008×3008 px).
• Square format ideal for nebulae and symmetrical mosaics.
• Zero amp-glow → effortless dark frames and clean images.
• 3.76 µm pixels for high resolution and excellent sampling.
• Very low read noise (as low as 1.0 e⁻).
• Very high QE → excellent response with dual/triband filters.
• Full-Well Capacity 50,000 e⁻ with automatic HCG mode.
• Two-stage TEC cooling down to -35°C.
• USB 3.0 + 256 MB DDR3 buffer.
• Compatible with ASIAIR, NINA, SharpCap, Voyager.
• CNC aluminum body with anti-dew system.

Color performance for deep-sky

The ASI533MC Pro is perfect for nebulae, galaxies, open clusters, and narrowband projects (Hα-OIII) using dual-band filters. The extremely clean sensor ensures simple calibration and consistent results even with very long exposures.

Professional TEC cooling

The two-stage cooling system allows for temperatures down to -35°C, reducing thermal noise and improving the quality of long-exposure shots.

Key Technical Specifications

Ideal for

• Color deep-sky
• Diffuse nebulae and HII regions
• Dual-band filters (L-eXtreme, L-Ultimate, Duo-band)
• Compact and portable setups

In the box

• ZWO ASI533MC Pro camera
• USB 3.0 cable
• ST4 cable
• 2"–1.25" adapter
• T2 ring
• Screws and accessories
• User manual