Kenko 10×30 IS

Specifications:

Objective diameter:  30 mm
Magnification:  10 x
Exit pupil: 3.0 mm
Usable eye relief (measured from rim of eyecup): 13 mm
IPD:  54 – 74 mm
RFOV:  5.2  degrees = 91 m
AFOV (measured, rounded): 53.5 degrees
Minimum focus distance (measured): 2.5 m
Focus type:  CF (direction of rotation from close to infinity: < anticlockwise)
Degrees of rotation of focus wheel from 3m to infinity (measured): 285 degrees
Range of diopter adjustment (acc. to spec.): +/- 3 dpt*
Excess travel of focus wheel beyond infinity position (estimate): 7 dpt*
Prism system:  Porro II
Waterproof: no
Weight (measured, with eyepiece cover and objective caps): 541 g
Made in: China
*range of diopter adjustment not affected by position of focus wheel

Remarks:

The Kenko 10×30 IS is one of a number of new stabilized compact binoculars that recently appeared on the market, some of the others being the Vixen Atera 12×30 (see separate post https://binocular.ch/vixen-atera-h-12×30/), the Fujinon Techno-Stabi 12×28 (see separate post https://binocular.ch/fujinon-techno-stabi-12×28/) and the Canon 8×20/10×20 (see separate post https://binocular.ch/canon-8×20-is/). The Kenko, Vixen and Fujinon seem to share most of the essential parts of their optical and stabilization systems; notable differences: the Kenko’s magnification is 10x (Vixen and Fujinon: 12x), and the Kenko uses larger eyepiece lenses than the other two. In terms of optical and stabilization performance, BINOCULARS TODAY was neither convinced by the Kenko, the Vixen nor the Fujinon  (see further remarks in the above mentioned separate posts), since none of them reaches the performance of e.g. the new small Canon binoculars.

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