Convenient UHC Filter for 1.25" Telescopes for Clearer Planet Views, Perfect for Astrophotography Good Surfaces Precise

High-concerned chemical : None Material : Metal Origin : Mainland China Material : Optical Glass Lens, Aluminum Frame Shape : Round UHC Filter Size : Approx.28.5x0.6mm/1.12x0.02in Thread : 28.5x0.6mm Glass Thickness : 1.85mm Type : High Contrast Filter (UHC Filter)