67mm X1 UV (Ultra Violet) Filter For Camera Lenses - Breakthrough Photography The X1 UV features 4-layers of our state-of-the-art and uniformly applied MRC, which means less flaring and ghosting that you'd normally see with uncoated protection filters. The X1 features a 3.5mm ultra-slim double-threaded frame profile to eliminate vignetting on wide-angle full-frame setups. Every filter we make, including the X1 UV, is weather-sealed. If you want to ensure that your lens maintains out-of-box optical performance for as long as possible, Canon, Nikon, and Sony recommend protective filters for the purpose of completing a lens weather-seal. The X1 UV is our take on the legacy flat black UV filter with a modern spin: MRC4 and a 3.5mm ultra-slim weather-sealed frame. Benefits: Our MRC coating process increases light transmission from 94.6% (without MRC) to 97.8%. 4-layers of MRC means less flaring and ghosting. 25 years support. Features: MRC4 Construction 3.5mm ultra-slim Weather-sealed Frame Item includes: 1 x 67mm X1 UV Filter 1 x Lens Cloth Click on Buy now button to complete your purchase!