Características

Código - 11 806 - 11 154 LLC - 173
Producción -1980-1998 < 16,615 Objetivos
Variantes: 2-cam, 3-cam, R; ELC & ELW
Montura - LEICA R
Ángulo de visión (diagonal, horizontal, vertical): 27º

Diseño Óptico:

Número de lentes/grupos 4/4
Longitud focal efectiva -
Posición de la pupila de entrada

Intervalo de enfoque: - 0,70 m a infinito
Escalas: en metros y pies
Campo visual mínimo:
Factor de reproducción:
Diafragma - f:2,8-f:22 automático con valores inrtermedios de 6 hojas
Montura de filtros: E55
Parasol: incluido, telescópico
Accesorios: ELPRO tipo 3
Longitud hasta la bayoneta - 72 mm
Diámetro máximo - - 65 mm
Material: Aluminio anodizado.
Peso - aprox. 450 g
Inscripción ELMARIT-R 1:2.8/90 LEITZ CANADA 2XXXXXX
LEICA ELMARIT-R 1:2.8/90 E 55 3XXXXXX
LEITZ ELMARIT-R 1:2.8/90 3XXXXXX
Diseño: Walter Mandler

Referencias

The maximum aperture of the lens is modest compared to comparable focal length designs with speeds of 1:1.2, 1:1.4 and 1:2. The rule that less is more could be applied in this case. With only four separate lens elements in a compact mount Leica created an outstandingly good design that easily outperforms most of the competition, especially the ubiquitous zoom lens that emerged in the 1980s and often covered this focal length within the zoom range.

This 4-element lens has no cemented surfaces and Absorban cannot be used to control color transmission: this has to be accomplished with several different layers of coating. For this lens the German proverb: “in der Beschränkung zeigt sich der Meister” is to the point and would suit any Leica photographer. The first series of this R-lens has been manufactured in Portugal.