Leitz Summilux-M 50mm f/1.4 Prototype

During the time of the ever more booming business with the Leitz SLR cameras, attempts were made to implement lenses for the R- and M-system based on a uniform optical formula. In the case of the M lens offered here, it is such an example. The test number that started with "517 ..." was originally assigned for the development of an R lens. Experimental lens without parallel mount and with a diaphragm scale scratched by hand. Strikingly green coating´s residual reflex in the front-element. A Summilux-M lens of such design was never made in series. The outer collar with a slight dent on the front. The optics with haze and linear coating defects.

Included: Plexi container with sticker "517.575 2" and "B848".