Professional lens protector with additional nano effect, made of high-quality lens glass for intense colours. Clear shots with intense colours because the unwanted blue tint of ultraviolet radiation is avoided, reduces haze and prevents blurring. NMC16 coating: eight layers on each side, for very high light transmission and maximum anti-reflection. Vapour-deposited nano-coating. Nano-coating for lotus effect: easy to clean, reduces fogging as well as renewed dirt adhesion, water, oil and dirt repellent. Scratch-resistant. Filter front and back are coated, so there is no loss of contrast or brilliance, ghosting and double images are prevented. Ultra-thin wide-mount: prevents vignetting, can remain permanently on lens. Hardly lengthens the lens mount. A protected front lens saves expensive repair costs. Grade (glass): high quality lens glass. Black anodised metal filter mount and blackened inner edges prevent reflections. Edge sealing protects against dirt. Frame retains its shape despite temperature fluctuations.