Nisi 46mm Round L395 SMC UV Filter camera filter

Essential lens protection

The NiSi 46mm Round L395 SMC UV Filter is a new camera accessory designed for photographers who want to shield the front element of a 46mm thread lens from dust and physical damage. Its ultra-thin 5.2 mm frame helps avoid vignetting when used on wide-angle lenses, preserving the full field of view. High-quality Japanese optical glass maintains image clarity while the filter absorbs ultraviolet light at the 395 nm wavelength.

Verify thread size and stack height

Before ordering, confirm that your lens has a 46mm filter thread, typically marked on the barrel or front cap. The slim 5.2 mm frame reduces the risk of corner darkening on wide angles, but stacking multiple filters may still cause vignetting depending on the focal length. Check that the front element and threads are clean so the filter seats flush without cross-threading. No adapter rings are included for other thread sizes.

Slim frame and coated glass daily use

The ultra-thin brass ring sits close to the lens hood, allowing many hoods to mount over the filter without removal. Double-sided multi-coating resists reflections, repels water and oil, and makes fingerprints easier to wipe off during a shoot. Japanese optical glass resists scratches better than resin alternatives, protecting the front element if the camera is bumped. The lightweight build adds minimal mass to the lens balance.