The lens hood is a piece of plastic that clips onto the front of a camera lens and extends beyond it. Lens hoods serve two primary purposes: (1) reducing lens flare, and (2) protecting the lens from damage. The intended purpose of the lens hood is simply to reduce lens flare, but the protection it provides to the glass elements of the lens is a beneficial side-effect.
Screw in type 58mm lens hood
At extreme wide like 18mm 22mm position it appears in photo
When lens hood is fit on the lens-lens cap can not be fit to the lens
Fits to lenses which accepts 58mm filters. like Canon EOS 18-55mm 55-250mm lens