Carl Zeiss Jena Jenoptem 10×50

Specifications:

Objective diameter:  50 mm
Magnification:  10x
Exit pupil: 5 mm
Eye relief (acc. to spec):  12 mm
Usable eye relief (measured from rim of eyecup): 7 mm
IPD:  48 – 71 mm
RFOV:  7.3  degrees = 128 m
Focus type:  CF
Prism system: Porro I
Waterproof: no
Weight (measured, with eyepiece cover and strap): 1‘067 g
Made in: DDR (East Germany)

Remarks:

The Jenoptem 10×50 W was produced from 1971 until 1990; this particular sample was made in 1986. It features an impressively wide field of view and, due to the wide IPD range, can be used by people with a very narrow IPD. Even after more than 30 years, it’s optics still hold up quite well when compared with today’s quality binoculars.