Docter Nobilem 7×50 B/GA

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Objective diameter:  50 mm
Magnification:  7 x
Exit pupil: 7.14 mm
Eye relief (acc. to spec): 17.3 mm
Usable eye relief (measured from rim of eyecup): 15 mm
IPD: 53 – 74 mm
RFOV:  7.3  degrees = 128 m
AFOV (measured, rounded): 51 degrees
Minimum focus distance (measured): 5.35 m
Focus type: CF (direction of rotation from close to infinity: > clockwise)
Degrees of rotation of focus wheel from 5.35 m to infinity (measured): 230 degrees
Range of diopter adjustment (acc. to spec.): +/- 4 dpt*
Excess travel of focus wheel beyond infinity position (estimate): 5 dpt*
Prism system:  Porro I
Waterproof: yes
Weight (measured, with eyepiece cover and strap): 1’403 g
Made in: Germany
*range of diopter adjustment not affected by position of focus wheel



With its looks, this binocular from Docter – and its “siblings”, the Docter 10×50 and 15×60 – will hardly ever win an industrial design competition. Of odd shape and with an ugly rubber armour, it looks  a bit out of this world – but you forget all that once you look through its optics. The big Docter porro prism binoculars were all designed and produced until 1990 by Carl Zeiss Jena, who also made slightly more elegant leathered versions, and they are all optically quite nice and mechanically reliable. The 7×50 model does not feature a huge field of view, but impresses with good sharpness and contrast. Production of all Nobilem models has unfortunately been discontinued, but some are still available second-hand.

see also separate posts “Docter Nobilem 10×50”×50/  , and “Docter Nobilem 15×60”×60/


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