ZWO AR Protective Window

AR Protective Window

ZWO D21 AR protect window

Technical Parameter:

Diameter: 21mm

Type: AR window

Thickness: 1.1mm

Flatness: 1/4 λ

Protect the sensor from dust and humidity.

Match Model：

The cameras that come with the D21*1.1mm AR protictive window as list as below :

ASI120MM-S, ASI224MC, ASI385MC, ASI290MC/MM, ASI290MINI, ASI178MM, ASI120MINI.

ZWO D25 AR protect window

Technical Parameter:

Diameter: 25mm

Type: AR window

Thickness: 1.1mm

Flatness: 1/4 λ

Match Model：

ASI174 series.

Protect the sensor from dust and humidity.

ZWO D32 AR protect window

Technical Parameter:

Diameter: 32mm

Type: AR window

Thickness: 2mm

Flatness: 1/4 λ

Match Model：

ASI1600 series, ASI294 series, ASI183 series.