HOYA Protector HD
Ultra Clear High Transparency Optical Glass
Chemically Enhanced Optical Glass is 4x Stronger
8-layer Anti-Reflective Multi-Coating
Water & Oil Repellent, Scratch & Stain Resistant
Wide-Angle Lens Compatible Ultra Thin Frame
Glass Mounted with High Pressure Press Technology
This is the ultimate in clear filters. It will not affect the color balance or performance of your lenses in the slightest. However, constant use will protect your valued lenses from expensive front element damage which could be caused by dirt, knocks or scratches.