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Optical design: Internal focusing
Image angle(diagonal, horizontal, vertical): approx. 17°, 14°, 9.5°, approx.
corresponds to 144mm in 35mm format
Aperture range: 3.5 to 32
Shortest distance: 1.5 m
Largest image scale: 1:7
Filter thread size: 72 mm
Dimensions (diameter/length): 88 mm/151 mm
An extremely powerful, apochromatically correct telephoto lens, available
with or without central shutter and equally suitable for portraits and
long-distance shots. Three of the nine lens elements perform the focusing of the
lens, for excellent sharpness down to the close-up limit of 1.5 meters, even at
full aperture. Special glass types with low dispersion, anomalous partial
dispersion and a high index of refraction ensure the exceptional imaging
performance of this lens.