Leica's non-APO 50mm f/2 for L-Mount — premium normal prime with Summicron-class optics.
The Leica Summicron-SL 50mm f/2 ASPH. is Leica's standard normal prime for the L-Mount system. The Summicron designation indicates f/2 maximum aperture with Leica's quality standards — not APO-corrected like its sibling but still optically excellent.
Optically excellent — sharp from f/2.8 with Leica's characteristic contrast and colour rendering. The Summicron rendering is smooth with pleasant tonal transitions. Autofocus using Leica's dual-synchro-drive system. Good for both stills and video.
L-Mount with 67mm filter thread. Approximately 740g. Full weather sealing to Leica standards. Metal construction. Minimum focus distance 30cm. L-Mount Alliance compatible with Panasonic and Sigma bodies.
Available used at professional to luxury prices. The APO-Summicron-SL 50mm f/2 is optically superior but costs much more. The Sigma 50mm f/1.4 DG DN Art is faster and cheaper. For Leica SL system owners wanting Summicron quality at the standard focal length.