Zeiss Contax 28mm f/2.8 Distagon cinemodded EF-Mount, declicked iris, 0.8 gears for iris and focus, 80mm front with 77mm thread, fullframe coverage, 470 gr This is the slower version of the 28mm Zeiss Contax. Starting at a stop of f 2.8 it is much smaller and lighter than his “bigger” brother (or sister) with the unique vintage look of a mid 90ies Zeiss lens.