Objective diameter:  42 mm
Magnification:  10 x
Exit pupil: 4.2 mm
Eye relief (acc. to spec): 17 mm
Usable eye relief (measured from rim of eyecup): 14.5 mm
IPD:  56 – 74 mm
RFOV:  6.9  degrees = 121 m
AFOV:   62.2  degrees
Minimum focus distance (measured): 1.8 m
Focus type: CF (direction of rotation from close to infinity: > clockwise)
Range of diopter adjustment (estimate): +/- 5 dpt*
Excess travel of focus wheel beyond infinity position (estimate): 7 dpt*
Prism system:  Schmidt-Pechan
Waterproof: yes
Weight (measured, with eyepiece cover and strap): 733 g
Made in: Japan
*range of diopter adjustment not affected by position of focus wheel



Japan-made Nikon Monarch HG 10×42 is one of the best current upper middle class binoculars in their class, with a field of view that is wider than most other 10×42. It was introduced in 2016 as a suceessor to Nikon’s HG-L  model (see separate post “Nikon HG-L 10×42”, https://binocular.ch/nikon-hg-l-10×42/).

see also remarks under separate posts
“Nikon Monarch HG 8×42”, https://binocular.ch/nikon-monarch-hg-8×42/
“Nikon Monarch HG 8×30”, https://binocular.ch/nikon-monarch-hg-8×30/



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