Front thread diameter: 82mm, Rear thread diameter: 82mm. It can be screwed on the 82mm filter or lens thread
Length: 86mm, great for telephoto focal length lenses
It can prevent the scattered light from entering the lens during smooth and sidelight photography
When photographing by light or at night, the surrounding interference light can be avoided to enter the lens
It can prevent accidental damage to the lens, avoid fingers touching the lens surface by mistake, and shield the lens from sand, rain, and snow to some extends