Overview

The Olympus OM Zuiko Auto-T 100mm f/2 ED is a manual portrait lens praised for excellent handling and build quality, with smooth focus and aperture rings. Optically, it delivers sharp center performance even wide open, with smooth bokeh as a key strength. Weaknesses include noticeable flare when shooting into the sun, moderate lateral and axial CA despite ED glass, and visible vignetting at f/2. It suits photographers seeking a well-built manual portrait lens for adapted use, particularly on mirrorless cameras, though it may require careful handling of flare and CA.