Hood is set in front of the camera lens common photography accessories， metal， hard plastic， soft plastic and other texture. It has the following effects:
     1. In the backlight， side light or flash photography， to prevent the entry of non-imaging optical avoid mist.
     2. In the light and side light photography along， to avoid scattering light into the lens around.
     3. In light photography or night photography， interference can be avoided around the light entering the lens.
     4. You can prevent accidental damage to the lens， also avoid finger inadvertently lens surface， but also to some extent for the lens block the wind， rain and snow.
     Hood is widely used in backlighting photography， generally avoid glare. However， if the light from the past， is still possible glare. At this point， you can hand on the side where the light shielding hood. Whether to eliminate glare， clear viewfinder observation from

Diameter: 49 52 55 58 62 67 72 77 82 mm (mm)