ZWO PROTECTING WINDOW Filter Type:AR Ø21mm SWP3001-OTA

SWP3001-OTA

AUX2: Hybrid Step Motor with a max current of 300mA when powered at >= 12 VDC

often it is advised to point the right ascension axis to the refracted celestial pole

The optional Sky-Watcher f/5 coma corrector delivers excellent correction

focuser and Telrad reflex finder

ZWO PROTECTING WINDOW Filter Type:AR Ø21mm SWP3001-OTAAR Protecting Window ZWO D21 AR Protecting window Technical Parameter: Diameter: 21mm Type: AR window Thickness: 1. 1mm Flatness: 1 4 Protects the sensor from dust and humidity. Match Model: The cameras that come with the D21*1. 1mm AR protecting window are listed as below: ASI120MM S, ASI224MC, ASI385MC, ASI290MC MM, ASI290MINI, ASI178MM, ASI120MINI. ZWO D25 AR Protecting window Technical Parameter: Diameter: 25mm Type: AR window Thickness: 1. 1mm