Zeiss Dialyt 7×42 T*P
Objective diameter: 42 mm
Magnification: 7 x
Exit pupil: 6 mm
Eye relief (acc. to spec): 18 mm
Usable eye relief (measured from rim of eyecup): 12 mm
IPD: 56 – 74 mm
RFOV: 8.6 degrees = 150 m
AFOV (measured, rounded): 60 degrees
Minimum focus distance (measured): 3.7 m
Focus type: CF (direction of rotation from close to infinity: > clockwise)
Degrees of rotation of focus wheel from 3m to infinity (measured): 305 degrees
Range of diopter adjustment (estimate): +/- 3.5 dpt*
Excess travel of focus wheel beyond infinity position (estimate): 6 dpt*
Prism system: Abbe-König
Waterproof: splashproof (?)
Weight (measured, with eyepiece cover and strap): 891 g
Made in: Germany
*range of diopter adjustment not affected by position of focus wheel
The 7×42 Dialyt, often named “Classic”, used to be one of the most highly regarded birding binoculars, even after the fabulous Zeiss Victory FL 7×42 (see separate post, https://binocular.ch/zeiss-victory-fl-7×42/) came out (which in BINOCULARS TODAY’s view is perhaps the best 7×42 ever built). The Dialyt was particularly applauded for its bright image, wide field of view and its light weight, beside its wonderfully classical design. Today, there still is a very active second hand market for this instrument.
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