Product code: 11011209305161
The Carl Zeiss Lens shade 3,5/18 & 2,8/21 ZE/ZF.2 (1772-179) is a dedicated Zeiss Lens Hood specifically designed for the Distagon T 3,5/18 ZE/ZF.2 or Distagon T 2,8/21 ZE/ZF.2.
This Lens hood is in Metal (no plastic) and 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.
The Carl Zeiss Lens shade 3,5/18 & 2,8/21 ZE/ZF.2 (1772-179) is designed to match the specific focal length of the lens it was designed for.