Leica lenses

thumb|right|A Leica M8 with a Leica Noctilux-M 50mm f/1 lens. thumb|right|Optical Diagram of Leica Noctilux 50mm f/0.95 ASPH lens. thumb|detailed view The name Noctilux is used by Leica to designate their camera lenses with the widest maximum aperture. Lenses with that name have been in production since 1966. So far all Noctilux lenses have been made for the Leica M mount.

thumb|right|Leica Summilux-M 50 mm Version 2 (1961 – 1968) thumb|right|Leica Summilux 35 mm Version 1 thumb|right|Optical Diagram of Leica Summilux-R 50mm f/1.4 II lens. The name Summilux is used by Leica and Panasonic Lumix to designate camera lenses that have a maximum aperture brighter than f/2, typically at f/1.4, but dimmer than f/1.25. The lens has been in production since 1959 and carries on to the present day.