Overview

The Leica Elmarit-S 30mm f/2.8 ASPH is a wide-angle prime for Leica S-series medium format cameras, offering a 35mm-equivalent 24mm view suited for interiors, architecture, and landscapes. Optical strengths include very high performance at f/5.6, the optimal aperture, and remarkably low distortion (~2.8%) for an ultra-wide. Weaknesses include steady contrast falloff at f/2.8 likely due to field curvature, and diffraction beginning at f/8. Build is heavy at 1140g, manual focus only, and expensive. It suits photographers needing a high-quality, weather-sealed wide-angle for handheld medium format work.