ZWO D21 AR Window

The ZWO D21 AR protection window is suitable for the ASI120MM-S, ASI224MC, ASI358MC, ASI290MC/MM, ASI290MINI, ASI178MM, and ASI120MINI cameras to protect the sensor from dust and humidity.

D21 AR Window Specifications

• Diameter: 21 mm

• Type: AR Window 

• Thickness: 1.1 mm

• Flatness: 1/4 λ