ZWO ASI533MM Monochrome Camera

Brand: ZWO


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  • Ideal for astronomical photography
  • Due to the SONY STARVIS CMOS sensor, the ASI533 is better for night photography
  • The peak quantum efficiency of ASI533MM is greater than 91%

Product Details

  • The planetary camera ASI533 features Sony's latest back illuminated IMX533 sensor, high sensitivity, and zero glow. With a 1" square sensor format, it is ideal for astronomical photography.

    1" Square Frame

    The IMX533 is a 1" square format that is ideal for astronomical photography. With a 3.76 um pixel size, the ASI533 is capable of producing frames at 20 frames per second in 14 bit 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.


    ASI533 can be regarded as an upgrade product of ASI183 series. It's equipped with SONY STARVIS CMOS sensor, which has a better effect when shooting at night. It has the advantages of zero amp glow, a large full well, low readout noise, and a high dynamic range.

    USB .0 & 256M DDR3 Memory

    The ASI533 is equipped with a USB 3.0 interface, and the 256MB DDR3 memory ensure stable downloading of frame with increased USB speeds and effectively reduces the glow caused by slow readout speed.

    Zero Amp Glow

    ASI533 uses a no-glow circuity to ensure the best quality images regardless of gain or exposure length.

    Upgrade Iterative

    Compared with ASI183 series, ASI533 has been fully upgraded.

    Camera Curve

    Low read noise, high dynamic range.

    Quantum Efficiency

    Based on ZWO's calculations, the peak quantum efficiency of the ASI533MM is greater than 91%.

    Dark Current Noise

    Protect Window

    The ASI533 camera sensor is equipt with a protective window, with a diameter of 32mm and a thickness of 2mm. ASI533 uses an AR coated filter.

    Connection Method

    Connection to External Devices

    Mechanical Diagram

  • specifications

    ADC14 bit
    Back Focus12.5mm
    Color or MonoMonochrome
    Free ShippingYes
    Full Well50ke
    Max Frame Rate20fps
    Peak QE91%
    Pixel Array3008 x 3008
    Pixel Size3.76 microns
    PortsUSB 3.0
    Read Noise1e
    Sensor Diagonal11 to 20mm
    Sensor TypeCMOS
    SensorSony IMX533
    Weight0.28 lb
  • included items

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