If your wildlife viewing, hunting, or birding takes you into wide-open country where subjects are far away, but you want to keep your budget in check, the Nikon MONARCH M5 10×42 is an incredibly smart choice.
Serving as the direct successor to the legendary Monarch 5 line, this optic pairs the powerful reach of a 10x magnification with large, 42mm light-gathering objective lenses. By including Nikon’s premium Extra-low Dispersion (ED) glass at a highly accessible price point, the M5 10×42 delivers the bright, crisp, and color-accurate resolution you need to identify distant subjects across canyons, shorelines, and open plains without breaking the bank.
Powerful 10x Reach: The 10x magnification pulls distant subjects significantly closer than a standard 8x binocular. This makes it ideal for situations where you cannot physically close the distance, allowing you to pick out subtle field marks on waterfowl, scout big game, or read distant signage with ease.
Premium ED Glass on a Budget: Nikon includes their highly regarded Extra-low Dispersion glass in the M5, which drastically reduces chromatic aberration (that annoying purple or green color fringing on high-contrast edges). You get incredibly crisp resolution and true-to-life colors without paying flagship prices.
Bright Views: Despite the higher magnification, the large 42mm objective lenses generate a 4.2mm exit pupil. Combined with dielectric high-reflective multilayer prism coatings, this ensures excellent light transmission so you can keep glassing effectively during the dimmer hours of dawn and dusk.
Generous Eye Relief: The M5 10×42 features a very comfortable 18.4mm of eye relief. If you wear prescription glasses or sunglasses while viewing, the adjustable turn-and-slide eyecups make it easy to see the entire field of view without dark rings at the edges.
Sleek & Weatherproof: Weighing just 22.6 ounces, they are remarkably lightweight for a full-sized 10×42 optic. The chassis features a clean, smooth rubber-armored design for a secure grip. They are also fully nitrogen-purged and O-ring sealed, making them completely waterproof and fogproof in harsh weather.
| Specification | Detail |
| Magnification | 10x |
| Objective Lens Diameter | 42 mm |
| Field of View (Linear) | 293 ft at 1,000 yards |
| Field of View (Angular) | 5.6 |
| Close Focus Distance | 8.2 ft (2.5 m) |
| Eye Relief | 18.4 mm |
| Prism Type | Roof Prism |
| Dimensions (L x W) | 5.7 x 5.1 inches |
| Weight | 22.6 oz (640 g) |
| Weather Protection | Waterproof & Fogproof |
NIK16769
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