Características

Código - 11 803 LLC - 138
Producción - 1964-1968 < 1,530 objetivos
Fabricante: Schneider-Kreuznach
Variantes: 1-cam, 2-cam
Montura - LEICA R Leicaflex, exige bloquear el espejo.
Ángulo de visión (diagonal, horizontal, vertical): 95.7°

Diseño Óptico:

Número de lentes/grupos 9 /7
Longitud focal efectiva -
Posición de la pupila de entrada

Intervalo de enfoque: - 0.2 m a infinito

Escalas: en metros y pies
Campo visual mínimo:
Factor de reproducción:

Diafragma - f:3,4-f:22

Montura de filtros: Series VIII en el parasol
Parasol: 12511 - 14170W
Accesorios:

Longitud hasta la bayoneta
Diámetro máximo - 88 mm
Material: Aluminio anodizado.
Peso - aprox. 228 g
Inscripción SUPER-ANGULON-R 1:3.4/21 LEITZ WETZLAR 2XXXXXX

Diseño:

Referencias

A lens with the focal length of 21 mm was a requirement for any camera system that claimed to be on a professional level. Such a design in the lens range was a showcase for the optical capabilities of the design team. Leitz simply adapted the mount of the lens already available in the M-system to make the lens range that was introduced together with the new Leicaflex body more competitive with the Zeiss Contarex system, in those days the standard for German camera makers. One may assume that in those days the optical expertise to design really wide-angle retro-focus lenses was not available at the Leitz factory.

The complex design employs 8 elements, each of which is made from a different glass type. Vignetting is much reduced compared to the predecessor and color correction is excellent. It is evident that the lens was optimized for use with color-slide film, then the prevailing standard for quality-conscious photographers. The textural details are recorded with a certain softness that adds the extended gradient between sharpness and unsharpness, thus giving a pleasing effect to the pictures at the detriment of a clearly defined plane of critical sharpness. This is the typical behavior of many lenses from this period.

In 1974 Leitz manufactured an adapter ring (22228) that allowed this lens to be used on the M-cameras too. This construction supported the claim of Leitz that the M- and R-systems complemented each other and, since the M-system had its own version of the Super-Angulon 1:3.4/21 mm, could presumably reduce the cost of investment because both systems could use the same lens. Only 1530 units have been allocated!