Celestron Eclipsmart Solar Filter 8 SCT 20410 SkyPortal WiFi Module makes a

SkyPortal WiFi Module makes a great gift for telescope users of all ages and skill levels

enhanced hand controller and battery pack are included

Bolts made to contact the outside or optional (if appropriate) the inside of the optical instrument tube

Focal Ratio: f/11

To tighten the ring around the accessory

Celestron Eclipsmart Solar Filter 8 SCT 20410 SkyPortal WiFi Module makes aCelestron Eclipsmart Solar Filter 8 SCT Instantly transform your normal Celestron 8 Schmidt Cassegrain telescopes (8" SCT) and Celestron 8" EdgeHD telescopes into a white light solar telescope (for a complete list of 8" scopes, look in description section) ISO Compliant proprietary Solar Safe material Designed from the telescopes lens cap for a snug fit, each filter includes two safety Velcro straps and four self adhesive Velcro pads for safely