1 It can prevent the entry of non-imaging light when shooting in backlight, side light or flash photography. 2 Fit for EF 17-40mm/0.7-1.6in, 17-35mm/0.7-1.4in, 20-35mm/0.8-1.4in Camera Lens, provide better photography experience for you. 3 Avoid the surrounding scattered light from entering the lens when shooting in front and side light. 4 In lighting photography or night photography, it can prevent the surrounding interference light from entering the lens. 5 To prevent accidental damage to the lens, it can also prevent fingers from touching the surface of the lens, and it can also shield the lens from wind and sand to some extent. 6 Easy to install and operate, only need a few steps, effectively save your time.

What's in the box
2 x AntiGlare Lens Hood