Fotasy 105mm Ultra Slim Nano Coatings MRC Multi Resistant Coating HD UV Filter. This Premier UV Filter is designed for the professional photographer. The MRC UV is incredibly durable and resolves critically sharp, light transmittance can be as high as 99. 7%. The 18-Layer Multi-Resistant Coating process hardens both optical surfaces, reduces reflections and achieves true color neutrality while maximizing contrast fidelity. MRC Filters absorb ultraviolet rays which often makes outdoor photographer hazy and indistinct. A multi-purpose, fine weather filter also serves as a permanent lens protector. Reduced internal reflections mean a clearer image with greater contrast. The UV Filter will not affect the color balance or performance of your lenses.