Leica has just announced the new Leica APO-Summicron-SL 50mm f/2 ASPH, a new “all-purpose” lens for the Leica SL full-frame mirrorless system. “Often seen as the standard focal length for full-frame cameras, this new 50mm promises a level of performance high enough to demand a spot in the gear bag of any photographer looking to take advantage of the L-Mount system,” Leica says. “Whether the task at hand is travel photography, studio work, architecture, landscape, portrait or documentary photography, the…