DDoptics EDX 8×42

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Objective diameter:  42 mm
Magnification:  8 x
Exit pupil: 5.25 mm
Eye relief (acc. to spec): 17 mm
Usable eye relief (measured from rim of eyecup): 16 mm
IPD:  56 – 73 mm
RFOV:  7.2  degrees = 126 m
AFOV (measured, rounded): 55 degrees
Minimum focus distance (measured): 1.7 m
Focus type: CF (direction of rotation from close to infinity: < anticlockwise)
Degrees of rotation of focus wheel from 3 m to infinity (measured): 240 degrees
Range of diopter adjustment (acc. to spec.): +/- 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): 815 g
Made in: Japan
*range of diopter adjustment not affected by position of focus wheel



The DDoptics EDX 8×42 is virtually identical with the same size Kite Optics Ibis ED (see separate post https://binocular.ch/kite-ibis-8×42-ed/) and the Kahles Helia 8×42 (see separate post https://binocular.ch/kahles-helia-8×42/). Produced in Japan, it features an open central hinge and belongs to the upper middle class of binoculars. A bright image with good central sharpness, satisfactory off-axis sharpness, good correction of chromatic aberration, and good ergonomics make this a popular general purpose binocular. With 7.2 degrees, the field of view is a bit on the narrow side, compared to some of its competitors.



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

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