Yashica contax 135mm 2.8 Declicked Nikon F Mount

The optical construction of the lens consists of 5 elements in 4 groups. The build quality of the lens is pretty solid the lens mount and both barrel cams are metal. So the built-in slide-type metal lens hood that could be extended from the front of the barrel to reduce amount of stray light hitting the front glass element. Both aperture and focus rings are fully rubberized . The inner lens cam extends by a few centimeters when focused towards close-up.

The minimum focusing distance of the lens is 1.6meter and the minimum aperture is f/22. In the domain of telephoto lenses Carl Zeiss Sonnar T˟ 135mm f/2.8 is average in size and weight.- 585 grams and 7.8x 13,1 cm. It accepts 55mm screw-in filters.