Brand: ZWO

ZWO ASI533MM Pro USB3.0 Cooled Monochrome Camera (ASI533MM-P)


Brand: ZWO

ZWO ASI533MM Pro USB3.0 Cooled Monochrome Camera (ASI533MM-P)


  • 1” square sensor
  • The IMX533 is a 1-inch, 9MP CMOS image sensor in a square format with a 3.76 um pixel size, capable of producing frames at 20 frames/sec in 14bit mode.
  • Read out noise is as low as 1.0e which makes it comparable to SCMOS or EMCCD sensors and highly suitable for high definition, low noise imaging.
  • IMX533 backlit sensor
  • Zero amp glow
  • Low read-out noise, high dynamic range
$1,349.00 CAD

Easy Payment Options with .

What is a Backorder?
$1,349.00 CAD

Easy Payment Options with .

What is a Backorder?
Free Expert Support
Stress Free, Secure Shopping
30 Day Return Policy
Price Match Promise
Full Details Specifications Reviews and Questions Articles, Videos, Software, Links

Product Description

Important: For the following imaging camera models, please use a separate 12V power supply rather than the power hub in the ASIAIR Pro as the hub cannot provide enough amperage to power the camera's TEC coolers: ASI6200, ASI2600, ASI2400, ASI533, ASI071MC

The ASI533MC PRO adopts a Sony back-illuminated IMX533 sensor, which is a 1 inch square frame sensor made suitable for deep sky astrophotography needs. The ASI533MM Pro can be regarded as an upgrade of the ASI183 series.

Not only does it retain the high-quality features of the ASI183, such as high QE and high frame rate, it also features no amp glow, readout noise as low as 1.0e, pixel size of 3.76 um and a 2-stage TEC cooling. It is highly recommended for beginners of deep sky astrophotography.

IMX533 backlit sensor

Sony’s back-illuminated CMOS image sensor improves sensitivity and noise reduction – the key factors to enhancing image quality, while radically realigning their fundamental pixel structure from front-illumination to back-illumination. It has retained the advantages of CMOS image sensors such as low power consumption and high-speed operation.

With a conventional front-illumination structure, the metal wiring and transistors on the surface of the silicon substrate that form the sensor’s light-sensitive area (photo-diode) impede photon gathering carried out by the on-chip lens. A back-illuminated structure minimizes the degradation of sensitivity to optical angle response, while also increasing the amount of light that enters each pixel due to the lack of obstacles such as metal wiring and transistors that have been moved to the reverse of the silicon substrate.

Sony has newly developed a unique photo-diode structure and on-chip lens optimized for back-illuminated structures, that achieves a higher sensitivity and a lower random noise without light by reducing noise, dark current and defect pixels compared to the conventional front-illuminated structure.

Traditional CMOS sensors produce a weak infrared light source during operation quite often seen in the corner of uncalibrated images as the tell tale signs of ‘amp glow’. As the ASI533MM PRO uses zero amp glow circuitry, you won’t have to worry about amp glow even when using high gain, long exposure imaging.

Note: We recommend using an external 12V power supply to power the camera instead of USB 3.0/2.0 only

As you would expect this latest generation camera not only retains key features of the ASI183 series such as an attractive QE figure, high frame rate and along with other excellent characteristics of the ASI183 cameras, but also now includes new and improved features such as zero amp glow, extreme low read out noise (as low as 1.0e), 3.76 microns pixel size and an improved 2 stage TEC cooler giving enhanced cooling capabilities.


Sensor Sony-IMX533CLK-D
Diagonal 15.968mm
Resolution 9 Mega Pixel 3008*3008
Pixel Size 3.76μm
Max FPS at full resolution 20fps
Shutter Rolling shutter
Exposure Range 32μs-2000s
ROI Supported
Read Noise 1.0-3.8e
QE peak 91%
Full well 50000e
ADC 14bit
Interface USB 3.0 Type-B
Adaptor M42X0.75
Protect window D32-2-AR
Dimensions 78mm Diameter
Weight 470g
Back Focus Distance 17.5mm
Delta T 30°C-35°C below ambient
Camera Power consumption 650mA at 5V
Cooler Power consumption 12V at 3A Max
Working Temperature -5°C—50°C
Storage Temperature -10°C—60°C
Working Relative Humidity 0%—80%
Storage Relative Humidity 20%—95%
Max FPS at full resolution: 14Bit ADC
  • 3008×3008 19.88fps
  • 1920×1080 54.11fps
  • 1280×720 79.74fps
  • 640×480 116.55fps
  • 320×240 216.45fps
More resolutions are in software, support customize resolution.

Customer Reviews

Based on 7 reviews
Looks like a good purchase!

Fit, finish and build quality are excellent, as expected from my previous ZWO purchases. Drivers for ASCOM for Windows and NINA for Linux/Pi seem pretty solid and full featured. I have only had 1 test shot since purchase and as expected, star colours are better than my OSC camera. In addition, H-alpha sensitivity and noise are noticeably better than my older KAF8300M camera. Really looking forward to imaging with this camera!

Good all-around monochrome camera

A good solar imaging camera: square sensor, good imaging specs and well priced.

Love it

I have had a 533mc for a while but really wanted to explore the world of mono. I already have a 1.25 inch filter wheel and want to combine mono data with data from the 533mc, so for me this was the best choice. I love the cam based on my experience with the mc.
I picked it up yesterday and had first light last night. This is about 90 mins on each (also brand new) 7nm SHO filter, my first image in true mono.

Biggest bang for your dollar

If your looking for a high quality camera with low read noise this is the one and it’s affordable compared to the larger chip sized sensors and has the same pixel size. Excellent entry level mono camera that Performs like the more expensive models and gives great results. I like the square sensors and in my opinion makes it easier for mosaics.

ASI533MM thoughts

So far from what I have seen from the limited use, it meets my expectations.
I’m sure when I process the data it will exceed what I was expecting.

Additional Articles, Videos, and Links

Why Should You Trust All Star Telescope?

We've Made All The Mistakes
So You Don't Have To

Learn More