huge field of view, super fast lens change system . the anon m3 goggle features magna-tech® quick lens change technology for super-fast lens changes. so you're ready for all light conditions. the cylindrical lens offers a maximum field of view without distortion with improved contrast thanks to perceive lens technology.perceive sunny onyx lensthe anon m3 perceive lenses provide strong contrast for terrain recognition and unmatched, clear vision in a wide range of conditions. the lenses also feature a scratch, smudge and water-resistant coating, as well as an anti-fog treatment.light transmission: 6 %bonus lens: perceive variable violetlight transmission: 34 %