Nikon Monarch M5 10x42
by Nikon
10x42 roof-prism binocular from Nikon's Monarch M5 line, 18.4 mm eye relief.
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Specifications
- Angle Of View Degrees
- 5.6
- Close Focus Ft
- 8.2
- Exit Pupil Mm
- 4.2
- Eye Relief Mm
- 18.4
- Field Of View
- 293 ft @ 1000 yds
- Fogproof
- true
- Interpupillary Distance Mm
- 56-72
- Magnification
- 10x
- Objective Lens Mm
- 42
- Waterproof
- true
- Weight Oz
- 22.6
Source: manufacturer product page (MONARCH M5 8x42/10x42/12x42 spec table) — Last verified: October 12, 2026
Pros
- 18.4 mm eye relief, the longest of the two 10x42s we have on file
- Same 8.2 ft close focus as the Monarch M5 8x42
Cons
- 293 ft field of view at 1,000 yards, versus 335 ft for the Monarch M5 8x42
Who it’s for
Buyers choosing within the Monarch M5 line who want 10x magnification instead of 8x and accept the narrower published field of view (293 ft vs 335 ft at 1,000 yards) that comes with it on these two models.
Who should avoid it
Anyone for whom field of view is the priority should compare this against the Monarch M5 8x42, which has 335 ft on Nikon's published specs.
Our verdict
On Nikon's published specs, the 10x42 trades 42 ft of field of view at 1,000 yards, 1.1 mm of eye relief, and 1.1 mm of exit pupil for 10x instead of 8x magnification, with the same close focus and a 0.4 oz heavier body. We have not field-tested it; this page is built from Nikon's published specifications only. No price or retailer offer is on file yet.
Based on specifications, published information, and our evaluation framework — see how we test.
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