Very practical tool. - Celestron Telescope Moon Filter - 1-1/4" 94119-A

I enjoy sketching the the Moon and the use of a filter gives me a uniform, glare-free image. Reduces glare to the extent that many small details are not hidden by the excess light. Young and old Moon phases don't require the filter.
Pros: Tight, sturdy, and well made.
Cons: Long time to screw in!

This review was written in the old system and had content requirements that are different than reviews written today.