Diffuse Light Preventing: Camera lens hood circular sunshade can avoid scattered light from around the lens when shooting in downlight and sidelight. Interference Light Prevention: Camera lens hood circular sunshade can be avoiding distracting light when shooting with light or at night. Protecting The Lens: Camera lens hood shade can prevent damage to the lens, to avoid accidental finger touching the lens to some extent for shielding the lens from wind, sand, rain and snow, etc. Avoiding Haze: Camera lens hood circular sunshade can prevent non imaging light from entering when backlighting, sidelighting or flash photography and avoiding haze. Reduce Light Spots: Lens hood shade has inside matte face design to further reduce or avoid lens light spots.