The ZWO ASI664 Color excels in capturing breathtaking full-color images, making it well-suited for planetary imaging. Its exceptional performance is attributed to the utilization of Sony Starvis 2 technology, featuring a larger pixel size that significantly enhances low-light capabilities. This technological advancement allows the camera to capture a higher degree of detail, resulting in sharper and more impressive images. The ZWO ASI664 has a no amp glow design, ensuring that unwanted artifacts do not interfere with the quality of the captured images. This design choice contributes to the camera's overall reliability and image clarity.  The camera boasts fast transmission capabilities through its USB 3.0 interface, coupled with a DDR3 256GB built-in cache. This combination enables the swift and stable transmission of images, allowing users to efficiently capture and process data without compromising on performance.  Equipped with a built-in High Dynamic Range (HCG) feature, the ZWO ASI664 further enhances its imaging capabilities. This HCG functionality not only facilitates high dynamic range imaging but also effectively reduces readout noise, ensuring that the camera delivers exceptional results even in challenging conditions.

To protect the camera interior while improving image quality and performance, the camera incorporates an anti-reflective (AR) coated protective window. This protective window serves to improve Ultraviolet (UV) and Near-Infrared (NIR) performance, allowing the ZWO ASI664 to capture a broader spectrum of light with greater precision.  The ZWO ASI664 Color stands out as a powerful and versatile imaging tool, leveraging cutting-edge technology to deliver stunning, detailed, and artifact-free images. Its thoughtful design and advanced features make it an ideal choice for enthusiasts and professionals engaged in planetary imaging and astrophotography.

The ASI664 features Sony STARVIS 2 technology.   Sensors using STARVIS 2 have a larger pixel size that enables superior light capture for producing clearer and more detailed footage, especially in low-light conditions. Renowned for its improved low-light performance, high resolution, and clarity, the Sony STARVIS 2 stands out as a technological marvel that also excels in minimizing power consumption.

With DDR3 and a built in 256GB cache paired with USB 3.0, the ASI664MC provides fast and stable data transmission.  Fast data transmission is crucial for astrophotography for several reasons: capture efficiency, reduced downtime, real-time monitoring, post-processing efficiency, and maximizing sensor integration time.   By transmitting data quickly, you can capture long exposures without concern for data loss or extended downtimes making the most of your imaging session.  

The ASI664 has a larger pixel size, greater resolution with a larger field of view than the ASI662MC.  See this comparison for more detail.

Addressing amp glow is crucial in astrophotography, as it can affect the accuracy and quality of the captured images. Strategies such as dark frame subtraction and utilizing equipment with advanced thermal management play a significant role in managing and minimizing the impact of amp glow in astrophotography.   The ASI664 is designed with specific features to minimize or eliminate amp glow and to reduce the impact of thermal noise.

Measuring a camera's performance can be done by reviewing the QE curve and readout noise.   Higher QE and lower readout noise are needed to improving the image signal to noise ratio.  Per ZWO's readings, the QE peak of the ASI664MC is approximately 91%. 

This camera includes and AR coated protective window with a diameter of 21mm and a thickness of 1.1mm which improves ultraviolet (UV) and near infrared (NIR) performance.