Características

Código - 11 675 - 11 776 - 11 777 - 11 875 - 11 888-gold LLC - 128
Producción - 1970-1998 < 35,322 Objetivos

Variantes: Negro, Verde "Safari" y dorado (con el parasol telescópico); ELC & ELW; 2-cam y 3-cam;
Montura - LEICA R
Ángulo de visión (diagonal, horizontal, vertical): 47°, 40°, 27°

Diseño Óptico:

Número de lentes/grupos 7/6
Longitud focal efectiva -
Posición de la pupila de entrada

Intervalo de enfoque: - 50 cm a infinito

Escalas: en metros y pies
Campo visual mínimo: 180 mm x 270 mm
Factor de reproducción: 1:7.5

Diafragma - f/1,4-f/16 automático con 6 hojas, con valores intermedios

Montura de filtros: E 55
Parasol: 12508 hasta #280697 que incorporó uno telescópico
Accesorios:
Longitud hasta la bayoneta - 50,6 mm
Diámetro máximo - 68,5 mm
Material: Aluminio anodizado y pintado
Peso - aprox. 395 g
Inscripción SUMMILUX-R 1:1.4/50 LEITZ CANADA 2XXXXXX
SUMMILUX-R 1:1.4/50 LEITZ WETZLAR 3XXXXXX
SUMMILUX-R 1:1.4/50 E 55 3XXXXXX LEICA

Diseño: Heinz Marquardt - Diciembre, 1967

Referencias

• Marco Cavina LEITZ SUMMILUX-R 50mm f/1,4 PRIMO TIPO: I SEGRETI DEL SUO NOCCIOLO OTTICO
  

A classical design approach for improving performance and/or increasing speed of a lens is splitting the rear element in two separate lens elements. This is indeed the case with the first Wetzlar-designed Summilux-R 1:1.4/50mm that has been introduced at Photokina 1970. The lens is a potent performer, at least the equal to contemporary designs, especially the Nikon, Canon and Olympus implementations of the 1.4/50mm lens. These numbers (1.4 and 50mm) evoked a deep emotion in photographers who wanted to record the human condition in its darkest corners, especially when Kodak Tri-X, pushed to EI 800 was the fastest emulsion available. The Summilux-R would not disappoint, even if wide open the contrast was low, but it showed better definition of detail in deep shadows than most competitors. Any Leica R4 with this Summilux-R 50mm was a very pleasant combination, but for some reason it lacked the professional image of the Nikon and Canon reflex cameras.

During its production, the Summilux underwent several detail changes in glass type, without altering its fingerprint.

Around 1980 there is a change in production method, and lenses are no longer classified in groups of focal length (as with the M-lenses), but a compensation method is used to adjust the correct focal length with lens thicknesses and distances.