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ZWO ASI664MC USB3.0 Colour CMOS Camera

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Product Code
Cooled or Uncooled
2704 x 1536
Pixel Size
Sensor Size
7.8 x 4.5 mm
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ZWO ASI664MC USB3.0 Colour CMOS Camera

The ASI664MC is a remarkable new planetary CMOS camera. The 1/1.8" Sony IMX664 sensor features a small pixel size of 2.9micron pixel and a high resolution of 2704*1536 (4.15Mpx). In high speed mode, the frame rate reaches 95fps, while the readout noise remains at an extremely low level of 0.46e! The larger sensor size and higher resolution compared to the ASI662MC results in sharper images for a better astrophotography experience. 

STARVIS 2 Technology

You might not be a stranger to STARVIS 2 technology - it offers the ASI664MC outstanding image quality and imaging performance. 

High transmission speed

This camera has a USB 3.0 interface, along with the built-in 256MB DDR3 cache, ensuring high speed, smooth and stable data transmission. 

ASI664MC vs ASI662MC

The ASI664MC can be considered as an iteration of the ASI662MC. With the great improvement in sensor size and resolution, it provides a larger FOV and also results in high-quality images containing more details. 

Zero amp glow

The ASI664MC adopts no-glow circuitry to avoid annoying amp glow being produced, and ensures the image quality no matter how long the exposure and how high the gain value is. Note: This feature is implemented directly at the hardware level, and does not require software control.

Camera curve: Low readout noise, high dynamic range

The camera has a built-in HCG mode, which can effectively reduce readout noise at high gain and keep the dynamic range at the same level as it does at low gain. At gain 252 and above, the HCG mode is automatically turned on; the dynamic range is close to 11 bit and the readout noise can be lower than 1.0e. 

Quantum efficiency:

QE curve and readout noise are very important parameters to measure the camera's performance. Higher QE and lower readout noise are necessary to improve the image signal-noise ratio. According to ZWO's estimation, the QE peak of the ASI226MC is about 91%.

Protective window

The ASI664MC adopts an AR-coated filter as the protective window (D: 21mm, thickness: 1.1mm). It improves the camera's performance in the UV and NIR wavelengths. 


Specifications: ZWO ASI664MC USB3.0 Colour CMOS Camera

  • Sensor: IMX664
  • Sensor size: 1/1.8", 7.8x4.5mm
  • Resolution: 2704x1536
  • ADC: 12bit
  • Pixel size: 2.9µm
  • Read noise: 0.46e
  • Full well: 36.5Ke
  • QE: 91%
  • USB: 3.0
  • FPS: 95

Mechanical diagram:

 ZWO ASI664MC Mechanical Diagram

What's in the Box

What's in the Box: ZWO ASI664MC USB3.0 Colour CMOS Camera

  • ZWO ASI664MC Camera body
  • Cover
  • ST4 cable
  • 1.25" Nosepiece
  • Quick guide
  • USB3.0 Cable (2m)

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