To extend and shield the lens end, this Guard offering additional protections against accidental impacts, while allowing filter and lens shade access. The HB29 Lens Guard effectively blocks unwanted light from entering the lens, ensuring clear and vibranted photos without vignetting. From durability ABS this lens Guard effectively blocking unwanted light, the light shielding internal extinction treatments. During forward and side light photography, scattered light from the surrounding area can be avoided from entering the lens. It can accidental damage to the lens and also fingers from accidentally touching the surfaces of the lens.