... end of the lens. Another benefit of the lens' extension is some additional protection from accidental impact.The Rubber Lens Hood folds down and ... can remain on the lens permanently because it only lengthens the ... : 49mm,52mm,55mm,58mm,62mm,67mm,72mm,77mm,82mm rubber lens hood 49mm,52mm,55mm,58mm,62mm,67mm,72mm,77mm,82mm