Leica Hood 16-18-21mm f/4.0 ASPH
SKU: 799429124588 Mfg Code: 12458
This Leica lens hood is primarily designed to prevent unwanted stray light from entering the lens by extending and shading the end of the lens. Since the end of the lens is extended, you also get the added benefit of some extra protection from accidental impact. This dedicated lens hood is designed to match the specific focal length of the Tri-Elmar-M lens.