UV Protector Filter — Compatible with Pentax HD PENTAX-D FA 21mm f/2.4ED Limited DC WR Lens | Optically Neutral 1x (+0) UV Guard

Made specifically for the Pentax HD PENTAX-D FA 21mm f/2.4ED Limited DC WR Lens. This UV protector absorbs harmful ultraviolet radiation that can create hazy, low-contrast images—an issue most noticeable at high elevations, by the sea, or in snowy environments. By reducing the bluish cast of daylight, it helps render more natural tones and clearer results in a wide range of lighting conditions. Optical neutrality is a priority: the filter features a clear, non-color-shifting construction with a 1x filter factor (+0 stop), so it does not change exposure, contrast, or color balance. Your photos will retain full sharpness, fine detail, and accurate color while gaining the benefits of UV reduction. Designed for everyday protection, the filter stays on the lens during regular shooting to shield the front element from scratches, dust, dirt, water spots, fingerprints, and accidental contact. It also provides an added layer of defense against bumps, drops, and abrasions, helping prolong the usable life of your lens.