Specifications:
Objective diameter: 70 mm
Magnification: 10x
Exit pupil: 7 mm
Eye relief (acc. to spec): 23 mm
Usable eye relief (mesured from folded eyecup): 14mm
IPD: 56 – 74 mm
RFOV: 5.3 degrees = 93 m
AFOV: 53 degrees
Minimum focus distance (estimate): ca. 14 m
Focus type: IF
Range of diopter adjustment (estimate): +/- 5 dpt
Excess travel of focus wheel beyond infinity position (estimate): 5 dpt
Prism system: Porro I
Waterproof: yes
Weight (measured, with eyepiece cover and strap): 1‘170 g
Made in: Japan
Remarks:
10×70 means: 10x magnification AND an exit pupil of 7mm – therefore brighter than the common 10×50 binocular, but also considerably larger in size and heavier. A fabulous observation tool, best used mounted on tripod. For astronomy, ideally to be used under a very dark sky, otherwise if your sky background is too bright, you actually would be better off with a 10×50. Only a small number of binoculars in configuration 10×70 / 10.5×70 / 11×70 are on the market today; this is one of the best.
see separate posts „Nikon 10×70 IF HP WP“, https://binocular.ch/nikon-10×70-if-hp-wp/ and „Nikon 10×70 IF SP WP“, https://binocular.ch/nikon-10×70-if-sp-wp/
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