B+W 010M 105mm Basic UV Haze MRC Filter

The B+W 010M in the 105mm size is built for photographers who have invested in large-diameter professional lenses and want front-element protection that does not compromise their optics. The filter uses B+W's optical glass, which is polished to maintain sharpness and clarity across the frame. Its primary function is blocking ultraviolet light, which can cause a bluish haze in landscape and outdoor photography, particularly at high altitudes or over long distances. The Multi-Resistant Coating applied to both sides of the glass tackles a different problem entirely—it minimizes internal reflections that would otherwise produce flare and ghosting when shooting toward bright light sources, and its hydrophobic properties make fingerprints and water droplets easy to wipe away in the field.

The brass mount is a notable upgrade over the aluminum rings found on many budget filters. Brass is less prone to cross-threading, expands and contracts less with temperature swings, and grips lens threads more reliably, which matters on a 105mm filter that represents a meaningful investment. The knurled edge around the ring provides a tactile grip surface, making installation and removal straightforward even while wearing gloves. B+W has also added a QR-code-based authenticity check, addressing the real concern of counterfeit filters in the large-diameter market. For photographers using lenses like the Nikon 200-500mm f/5.6 or similar optics with 105mm front threads, this filter serves as unobtrusive daily protection that earns its keep every time a stray branch, splash, or grain of sand comes near the front element.