Genuine Leica Lens Hood for Super Elmar-M 18mm f/3.8 ASPH. Black # 12463

This Leica Lens Hood is a spare or replacement item for the one originally included with the Super Elmar-M 18mm f/3.8 ASPH. lens. 

Lens hoods are primarily designed to block unwanted stray light from appearing within an image by extending 

and shading the end of a lens. Since the end of the lens is extended while using the hood, 

some extra protection from accidental impact is also provided.