ZWO ASI533MC Pro — cooled colour astronomy camera The Sony IMX533CQK-C CMOS sensor records 3008 × 3008 pixels at 3.76 µm pitch. Sensor area is 11.31 × 11.31 mm. One-shot colour capture records colour through the sensor's colour filter array.
Manufacturer model: ZWO ASI533MC Pro · Specifications checked against manufacturer data on 2026-11-03
The Sony IMX533CQK-C CMOS sensor records 3008 × 3008 pixels at 3.76 µm pitch. Sensor area is 11.31 × 11.31 mm. One-shot colour capture records colour through the sensor's colour filter array.
Exposure and readout
Exposure range is 32 µs–2000 s, with a rolling shutter and 14-bit ADC. USB 3.0 supports image transfer; USB 2.0 is also supported. ZWO specifies zero amp glow.
Cooling and power
Regulated two-stage TEC cooling achieves 30–35 °C below ambient in the manufacturer's 30 °C tests. A 256 MB DDR3 buffer supports transfer. The cooler uses an external 12 V supply; ZWO recommends 3 A with a 5.5 × 2.1 mm centre-positive connector.
Optical connection
M42 × 0.75 connection. Backfocus is 6.5 mm without the 11 mm T2 extender, or 17.5 mm with it.
Camera flange-to-sensor distance is distinct from the telescope/corrector spacing requirement. Confirm the installed tilt plate and adapters. Gain, readout mode and hardware revision affect performance.
Additional specifications
Cooler power
12 V DC, 3 A recommended
Recommended DC supply
12 V DC, 3–5 A; 11–14 V documented input range
64309
Datasheet
Actieve koeling
Yes
ADC
14 bit (12 bit in hardware bin mode)
Versterkergloed
Zero amp glow
Backfocus
6.5 mm without / 17.5 mm with 11 mm T2 extender
Buffer
256 MB DDR3
Camerediameter (mm)
78
Cameraschroefdraad
M42 × 0.75
Kleurmodus
Colour
Koeling
Regulated two-stage TEC
Koeling onder omgevingstemperatuur
30–35 °C; tested at 30 °C ambient
Data-interface
USB 3.0 / USB 2.0
Belichtingsbereik
32 µs–2000 s
Beeldsnelheid op volle resolutie
20 fps over USB 3.0 / 2 fps over USB 2.0, 14-bit ADC
Full well (e⁻)
50000
Bedrijfsluchtvochtigheid
20–80%
Besturingssystemen
Windows, Linux and macOS (manufacturer manual; check current driver support)
ZWO ASI533MC Pro — cooled colour astronomy camera The Sony IMX533CQK-C CMOS sensor records 3008 × 3008 pixels at 3.76 µm pitch. Sensor area is 11.31 × 11.31 mm. One-shot colour capture records colour through the sensor's colour filter array.
Manufacturer model: ZWO ASI533MC Pro · Specifications checked against manufacturer data on 2026-11-03
