This dedicated Voigtlander Screw-In 58mm Lens Hood is specifically designed for use with the 58mm f/1.4 SL-II lens.
Lens hoods are primarily designed to prevent unwanted stray light from entering the lens by extending and shading the end of the lens. In addition, since the end of the lens is extended, you also get the added benefit of some extra protection from accidental impact.
In the Box
Voigtlander 58mm Screw-In Lens Hood for 58mm f/1.4 SL-II Lens