Summarit

The name Summarit is used by Leica to designate camera lenses that have a maximum aperture of f/2.4.

The Summarit was initially introduced as Leica's fastest lens in 1949 with a maximum aperture of f/1.5.

[1] On 3 August 2007 Leica revived the name and announced a series of less expensive lenses, the Summarit-M.

The Summarit-M lenses work on Leica M-series film and digital rangefinder cameras.

[2] In its current iteration the Summarit lenses have a maximum f-number of f/2.4.