Overview

The Carl Zeiss S-Planar 100mm f/4 C/Y is a macro lens designed for bellows use, offering excellent sharpness and resolving power, especially when stopped down. It is quite sharp wide open at f/4 on a stable tripod. Users report spectacular quality and perfect sharpness (MFlenses). However, depth of field is extremely shallow at 1:1, requiring stopping down. The lens is made in Japan and suits macro photographers needing high resolution for prints, but it demands a rigid setup and is less practical for handheld use (MFlenses).