Hood common photographic lighting generally avoid glare. However, if you still have from the past when the light glare phenomenon occurs, this time, you can sip the light shield, glare is eliminated, we can see the effect directly in the viewfinder. In addition to the effect of the outer cover of the optical quality of the lens itself is very clear, do not use cover, regardless of color photos, sharpness and contrast are not ideal, and in some aspects, the use of the cover image of the good performance. Small hood, a very important role. 4, in order to prevent accidental damage to the lens, also avoid finger inadvertently lens surface, and for the lens block the wind but also to some extent, rain and snow. 3, in the light or night photography shoot, in order to avoid interference of light entering the lens. 2, in the light and side light photography, and to avoid scattering light into the lens. 1, the backlight or sidelight blink, can prevent the formation of an image is a light anhydrous avoid fog. suit for: 18-55mm lens Interface type: bayonet type Package Contents: 1x lens hood