The Astrozap Dew Shield is an essential telescope accessory for anyone operating a telescope where d * Astrozap Dew Shield for Celestron 11 SCT"s reduces dew buildup on your Nexstar 11, C-11 or CPC 1100 * On the Astrozap Dew Shield for Celestron 11" SCT"s has padding on the inside of shield to prevent sc * The Astrozap Dew Shield blocks stray light from reaching your 10" Meade SCT Telescope"s optics. * The Astrozap Dew Shield for Celestron 11" SCT"s fits Nexstar 11, C-11 and CPC 1100 scopes.