Leica SUMMICRON-M 35 mm f/2 ASPH.
The LEICA name is synonymous with uncompromising quality, especially where lenses are concerned. But what’s in a name? Ken Rockwell has an interesting article where he explores and explains all those strange sounding Leica lens names such as SUMMICRON, SUMMARIT and ELMARIT — and tells you which ones are the best.