Sky Mentor 9.25" Flexible Dew Shield - DEW925 Antlia Pro Series Filters 25" barrel is threaded for

25" barrel is threaded for filters and kept short (0

and each ring has three adjustment points

such as this 5" Newtonian from Explore Scientific

In the late 70''s I designed an eyepiece sufficiently radical that I dared attach my name to it

Sky Mentor 9.25" Flexible Dew Shield - DEW925 Antlia Pro Series Filters 25" barrel is threaded forSky Mentor 9. 25" Flexible Dew Shield Prevents dew from forming on your Schmidt Cassegrain corrector lens Fits 9. 25 optical tubes Felt lined interior surface captures moisture and reduces stray light Rolls up for easy transport The Sky Mentor Dew Shield is an essential accessory that protects your optical tube in the field. It prevents excess moisture in the air from forming condensation on the corrector lens. A dew shield also helps block stray