Absorbs UV radiation and reduces blue haze without affecting colors
Reviewed by 2 customers
Well built filter, wish I could use it. Purchased to be used with the new Zeiss 15mm f/2.8 but the frame of the filter is so deep that it vignettes like CRAZY
I use this always to protect the lens and blue up the sky. You must use a good quality filter on a high priced high quality lens. Cheap filters just will not do the job and create distortion.