Absorbs ultraviolet rays which often makes outdoor photographer hazy and indistinct. A multi-purpose, fine weather filter also serves as a permanent lens protector.
Kenko manufactures and markets the highest quality filter glass. Their latest offering is this PRO1 Digital Series Filters, which dedicated to up and coming Digital SLR cameras. Key features cover DMC, new Digital Multi Coating, Black Almite frame, Black Rimmed Glass, Low Profile Frame, Knurled Frame Edge, UV protected Cases.