UV Protection Filter for Pentax smc FA 645 33-55mm f/4.5 AL Lens — Optically Neutral 1x (+0 stop), UV-Absorbing, Dust & Scratch Guard

Made specifically for the Pentax smc FA 645 33-55mm f/4.5 AL Lens, this UV filter blocks ultraviolet radiation that can create hazy, low-contrast images. It is especially helpful when shooting at high altitudes, beside the ocean, or on snowy terrain, where UV light often produces a cool bluish cast — the filter reduces that cast so tones appear more natural and overall image clarity improves in a variety of lighting conditions. The filter is clear and optically neutral with a 1x filter factor (+0 stop), so it does not change exposure, contrast, or color balance. Your photos keep full sharpness, fine detail, and accurate color rendition while benefiting from UV suppression. Beyond image correction, the filter acts as a permanent protective layer that you can leave on the lens during regular use. It helps guard the front element against scratches, dust, dirt, water spots, fingerprints, and accidental contact, and provides added protection from bumps, drops, and abrasions to help preserve your lens investment.