Specifications:

Objective diameter:  40 mm
Magnification:  10 x
Exit pupil: 4.0 mm
IPD: 52  –  71 mm
RFOV:  5.8  degrees = 102 m
Focus type:  CF
Prism system:  Porro I
Waterproof: splashproof
Weight (measured, with eyepiece cover and strap): 591 g
Made in: Germany

  

Remarks:

see remarks in separate posts
Optolyth Royal 8×56
Optolyth Royal 9×63
The Alpin series was Optolyth’s venture into the Porro design; currently, the series is not produced anymore. The Alpin 10×40 may be one of the lightest 10×40 binoculars ever; it featured decent optics (but not up to the current standard of similarly priced quality binoculars), but only average mechanics (bridge often rocking).

 

Ratings:

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Review:

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