Lens hoods are primarily designed to prevent unwanted stray light from entering
the lens by extending and shading the end of the lens. In addition, since the
end of the lens is extended, you also get the added benefit of some extra protection
from accidental impact. The "petal" shape of this lens hood maximizes the amount
of hood coverage for the minimum amount of weight and hood area. This dedicated
lens hood is designed to match the specific focal length of the lens it was designed
for.
One of the most important accessories for each lens you own. A lens hood provides
multiple functions: it shades the lens from stray light, improving your contrast
and image quality; in inclement weather, it can assist in keeping moisture or
wind-blown debris off the lens; and it protects the front barrel from the inevitable
impacts against walls, door frames, and other real-life obstacles.
Compatible with EF 28-200mm f/3.5-5.6 USM