UV Protection Filter for TTArtisan 250mm f/5.6 Reflex Lens (M42) — Absorbs UV, Reduces Bluish Daylight Cast, Protects Against Dust & Scratches

Made specifically for the TTArtisan 250mm f/5.6 Reflex Lens (M42), this UV protection filter filters out ultraviolet light that can cause haziness and low contrast—an effect most noticeable at high altitudes, along coastlines, or in snow-covered scenes. By reducing the bluish cast introduced by daylight, it helps your images show more natural tones and clearer detail in a wide range of outdoor lighting situations. The glass is optically neutral and clear, with a 1x filter factor (+0 stop), so it does not change exposure, contrast, or color balance. You maintain full sharpness, fine detail, and accurate colors while benefiting from UV reduction. Designed for everyday use, the filter stays on the front element as a protective barrier to guard 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.