ZWO ASI533MM Pro CMOS Monochrome Camera

• Entry level camera for deep space photography

  ASI533MM Pro

  
  

  

  
  

  The ASI533MM 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 frame rate, it also features: no amp glow, readout noise as low as 1.0e, pixel size of 3.76 μm, and a 2-stage TEC cooling. It is highly recommended for beginners of deep sky astrophotography.

  
  

  

  
  

  1-inch Square Frame

  The IMX533 is a 1-inch square frame CMOS image sensor with approximately 9M effective pixels at a pixel size of 3.76 μm. The 14-bit digital output of IMX533 makes it possible to read out signals of 9m effective pixels at a high speed of 20 frames per second with read noise as low as 1.0e, the performance of which is on par with those of SCMOS or EMCCD sensors. This sensor is suitable for image needs that require high definition and low noise.

  
  

  

  
  

  Full Upgrade

  The ASI533MM Pro is considered a full upgrade version of the ASI183 series.

  Model	ASI533MM Pro	ASI183MM/MC Pro
  Type	Mono	Mono / Color
  Cooling	Mono	Mono / Color
  Zero Amp Glow	Yes	No
  Format	1”	1”
  Resolution	3008 x 3008	5496 x 3673
  Pixel Size	3.76 μm	2.4 μm
  Pixel Size	3.76 μm	2.4 μm
  Read Noise	1.0-3.8e	1.5-3.0e
  QE	91%	84%
  Full Well	50,000e	15,000e
  ADC	14-bit	12-bit
  Back Focus	6.5mm / 17.5mm	6.5mm / 17.5mm
  MAX FPS	20 fps	19 fps
  Diagonal	16mm	15.86mm

  
  

  Camera Curve

  Low read noise, high dynamic range.

  
  

  

  
  

  Quantum Efficiency

  Based on ZWO’s calculation, the peak quantum efficiency of ASI533MM Pro is greater than 91%.

  
  

  

  
  

  Zero Amp Glow

  Traditional CMOS sensors can generate weak infrared light, which is equivalent to a light source during exposures. The ASI533MM Pro uses a no-glow circuitry to ensure best quality images regardless of gain or exposure length.

  
  

  

  
  

  2 Stage TEC Cooling

  The 2-stage thermoelectric can cool the CMOS sensor to 35 degrees below the ambient temperature (based on a 30 degree ambient temperature test results). Greatly reducing dark current and thereby improving the signal to noise ratio, even with a long expose of hundreds of seconds. Note: the lower the ambient temperature is, the smaller the Delta T is.

  
  

  

  
  

  Dark Current

  
  

  

  
  

  USB 3.0 & 256M DDR3 Memory

  ASI533MM Pro is equipped with a USB 3.0 transmission interface. In 14-bit ADC mode, the output frame rate can reach 20 frames per second. Additionally, the 256M DDR3 memory ensures a more stable data transmission during long exposure without frame loss, and can also relax the hardware requirements of the computer used for data capture.

  
  

  

  
  

  Appreciation Work

  
  

  

  
  

  Connection Method

  
  

  

  
  

  Connection to External Device

  
  

  

  
  

  Structural Dimension Diagram

  
  

  

• Specifications

  ADC	14 bit
  Back Focus	6.5 mm
  Camera Connection	M42 x 0.75
  Color or Mono	Mono
  Cooled	Cooled
  Delta T	35C
  Dynamic Range	13.7 Stops
  Free Shipping	Yes
  Full Rez Frame Rate	20fps
  Full Well	50ke
  Mega Pixels	9 mp
  Peak QE	80%
  Pixel Array	3008 x 3008
  Pixel Size	3.76 microns
  Protect Window	D32 2 AR
  Read Noise	3.8e
  Sensor Diagonal	16 mm
  Sensor Type	CMOS
  Sensor	Sony IMX 533
  Weight	1.04 lb

• Included Items