UV Protection Filter for Pentax smc FA 645 300mm f/4 ED (IF) — 1x (+0 stop) UV Blocking, Dust & Scratch Shield

Made to fit the Pentax smc FA 645 300mm f/4 ED (IF) lens, this UV protector absorbs ultraviolet radiation that often causes hazy, low-contrast results. It helps reduce the bluish daylight cast that appears in challenging environments — for example at high elevations, by the ocean, or on snowy terrain — so your images show more natural tones and improved clarity under a variety of lighting conditions. Optically neutral with a 1x filter factor (+0 stop), the filter does not alter exposure, contrast, or color balance. Your shots maintain full sharpness, fine detail, and accurate color rendition while benefiting from UV attenuation. Built for everyday use as a permanent front-element safeguard, the filter protects against scratches, dust, dirt, water spots, fingerprints, and accidental contact. It also provides added defense against bumps, drops, and abrasions, helping to prolong the usable life of your lens.