Dew Shield DX for 9.25" - 11" SCT & EdgeHD Spotting Scope such as diffuse emission nebulae

such as diffuse emission nebulae in the summer sky like the Lagoon (M8)

With this much light-gathering ability

but the background sky will be very dark as the contrast effect increases with added magnification

a culmination of all the advancements made to our technologies

in this versatile Barlow lens

Dew Shield DX for 9.25" - 11" SCT & EdgeHD Spotting Scope such as diffuse emission nebulaePrevents dew from forming on your Schmidt Cassegrain or EdgeHD corrector lens Fits 9. 25 and 11 optical tubes Cutout accommodates telescope dovetail rails (both CG5 Vixen and CGE Losmandy sizes) Felt lined interior surface captures moisture and reduces stray light Rolls up for easy transport The Celestron Dew Shield DX is an essential accessory that protects your optical tube in the field. It prevents excess moisture in the air from forming