Kowa Genesis XD 8.5×44



Objective diameter:  44 mm
Magnification:  8.5 x
Exit pupil: 5.2 mm
Eye relief (acc. to spec): 18 mm
Usable eye relief (measured from rim of eyecup): 12.5 mm
IPD: 55  –  74mm
RFOV:  7.0  degrees = 122 m
AFOV (measured, rounded):  57.5 degrees
Minimum focus distance (measured): 1.7 m
Focus type: CF (direction of rotation from close to infinity: > clockwise)
Degrees of rotation of focus wheel from 3m to infinity (measured): 245 degrees
Range of diopter adjustment (estimate): +/- 4 dpt*
Excess travel of focus wheel beyond infinity position (estimate): 5 dpt*
Prism system:  Schmidt-Pechan
Waterproof: yes
Weight (measured, with eyepiece cover and strap): 1‘017 g
Made in: Japan
*range of diopter adjustment not affected by position of focus wheel



In terms of price, the Kowa Generis XD 8.5×44 ranks somewhere in the upper middle class; in terms of performance, it competes with some of the high-end bincolars, despite a somewhat narrower field of view than some of its competitors. Excellent contrast, a wide sweet spot, a bright image with a neutral color tone, little chromatic aberration, good stray-light suppression all make it a fine instrument. It is slightly heavier than many similarly sized binos.

see als remarks under separate post „Kowa Genesis XD 8×33“ https://binocular.ch/kowa-genesis-xd33-8×33/



A 2014 comparative review (in German) can be found here:

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