Summarit CS 2.5/70 Asph Référence : 11051

Summarit CS 2.5/70 Asph


This standard lens, available with or without a central shutter, gives priority to top imaging performance for all applications. In addition to an aspherical surface, special glass with anomalous partial dispersion or high refractive power is used. Focusing combined with a floating element provides consistent high contrast performance through the entire working range, from close-up to infinity.

Technical Specifications

Order number 11055 (CS: 11051)
Lenses/groups 8/6 + 1 filter screen (1 aspherical surface)
Optical design Total focusing with floating element
Image angle
(diagonal, horizontal, vertical)
approx. 42°, 35.5°, 24°,
approx. corresponds to 56mm in 35mm format
Aperture range 2.5 to 22
Shortest distance 0.5 m
Largest image scale 1:4.7
Filter thread size 82 mm
Dimensions (diameter/length) 90 mm/93 mm
Weight 740g (CS: 890g)