Nikon Monarch M5 10x50 vs Nikon Monarch M7 8x30
Quick take: The Nikon Monarch M5 10x50 costs $140 less; the Nikon Monarch M5 10x50 reaches farther (10x vs 8x); the Nikon Monarch M7 8x30 has a wider field of view (435 vs 314 ft @ 1000 yds).
Field of view, to scale
Top-down view · drawn to true scale — no exaggeration
Which one to buy
Nikon built these two for opposite ends of the day. The Nikon Monarch M5 10x50 is for the edges of it: a 5mm exit pupil that owners say keeps its ED image bright at dawn, dusk and under the stars, 10x reach, and 19.3mm of eye relief that works with glasses. The Nikon Monarch M7 8x30 is for carrying all day: 16.4 oz, a 435 ft field as wide as many full-size 8x42s, and a 6.6 ft close focus for butterflies and dragonflies. It costs $140 more.
The M7's owners love its daytime view: sharp and colorful with a large sweet spot, well-controlled color fringing and a smooth, fast focus. They are equally clear about its catches. It is very sensitive to eye placement, with blackouts if you are off-center, and under bright skies a crescent of glare can appear at the bottom of the view when you pan upward; some owners call that a dealbreaker. Its 15.1mm of eye relief is marginal for glasses, and its 3.75mm exit pupil gives up real low-light performance.
The M5 10x50's owners flag a different set: a 314 ft field that feels tight, a 14.8 ft close focus that rules out insects, barrels that hang heavy on a neck strap, 10x shake by hand, and less owner history than older M5s.
For a birder or traveler who mostly watches in daylight, does not wear glasses and wants a binocular that always comes along, the M7 8x30 is worth the premium. For hunters, twilight wildlife watchers, casual stargazers and glasses wearers, the M5 10x50 is the better tool and the cheaper one.
Nikon Monarch M5 10x50
For low light, stargazing and eyeglass wearers, the brighter 10x50 does more for $140 less.
Nikon Monarch M7 8x30
Worth the extra $140 for daytime birders and travelers who want a light, wide-view binocular and don't wear glasses.
| Spec | Nikon Monarch M5 10x50 | Nikon Monarch M7 8x30 |
|---|---|---|
| Approx. price | ~$390 | ~$530 |
| Use case | Astronomy | Birding |
| Magnification | 10x | 8x |
| Objective | 50mm | 30mm |
| Exit pupil | 5.0mm | 3.75mm |
| Field of view | 314 ft @ 1000 yds | 435 ft @ 1000 yds |
| Eye relief | 19.3mm | 15.1mm |
| Close focus | 14.8 ft | 6.6 ft |
| Prism | Roof | Roof |
| Glass | ED | ED |
| Coating | Fully Multi-Coated | Fully Multi-Coated |
| Weight | 22.6 oz | 16.4 oz |
| Dimensions | 6.7 x 5.2 in | 4.8 x 4.4 in |
| Warranty | Limited Lifetime | Limited Lifetime |
Feature comparison
Nikon Monarch M5 10x50
- ✓ED Glass
- ✓Phase-Corrected
- ✓Dielectric Coating
- ✓Waterproof
- ✓Fogproof
- ✗Image Stabilized
- ✓Tripod Adaptable
- ✗Magnesium Body
- ✓Locking Diopter
Nikon Monarch M7 8x30
- ✓ED Glass
- ✓Phase-Corrected
- ✓Dielectric Coating
- ✓Waterproof
- ✓Fogproof
- ✗Image Stabilized
- ✗Tripod Adaptable
- ✗Magnesium Body
- ✓Locking Diopter
What birders say
Nikon Monarch M5 10x50
- ✓The 5mm exit pupil is the reason this configuration exists - it keeps the ED-glass Monarch image bright into dawn, dusk, and twilight stargazing where the 10x42's 4.2mm pupil starts to fade
- ✓Same ED glass and dielectric prism coatings as the rest of the M5 line, which forum testers found sharper edge to edge than the Prostaff P7 and Vortex Diamondback HD tier
- ✓One of the cheapest ways to get a name-brand ED-glass 10x50 - at around $300 it undercuts most quality 50mm competitors by a wide margin
- ✓Has 19.3mm of eye relief, even more than the M5 10x42, so eyeglass wearers can actually use the full field - rare in big-objective binoculars
- ✓A legitimate dual-purpose wildlife-and-stargazing glass - the 50mm objectives and clean roof-prism image make it a natural casual astronomy pick, and it's tripod adaptable for exactly that
- ✓Locking diopter and waterproof, fogproof build carried over from the smaller M5s
- ✓Owners of the M5 line consistently praise the true-to-color, fringe-free image that ED glass delivers - traits that matter even more on bright stars and backlit wildlife
- ✓Fills a gap Nikon left open for years - forum members greeted the 50mm Monarch's introduction as the budget ED big-objective option the lineup was missing
- ✗The field is 314 ft at 1000 yards - wider than the M5 10x42's 293 ft, but still no wide-angle sky sweeper
- ✗Nikon lists it at 22.6 ounces, the same as the M5 10x42, but the longer barrels still hang heavier on the neck over a full day
- ✗Close focus of 14.8 feet is by far the worst in the M5 family and rules out close-range nature observation entirely
- ✗Still a relatively new addition to the line with limited third-party review coverage and forum discussion - buyers have less owner history to lean on than with the 42mm models
- ✗Handheld 10x through a heavy 50mm body shows shake - many users end up on a tripod for extended sessions
- ✗Nikon's limited lifetime warranty compares poorly with the unconditional coverage from Vortex and Maven at nearby prices
- ✗For dedicated astronomy, the narrow field works against it - classic wide-field 10x50 porros show far more sky for less money
- ✗The bulk pushes it into direct comparison with 50mm hunting glass like the Vortex Viper HD 10x50, where the competition is much stiffer than at the M5's usual price point
Nikon Monarch M7 8x30
- ✓Huge 435 ft field of view for an 8x30 - the same width as the full-size M7 8x42, which makes finding and tracking birds noticeably easier than most compacts
- ✓Brightness that surprises people - testers at All About Birds found it held its own head-to-head against similarly priced 8x42s even in dim light
- ✓Genuinely sharp, colorful image with a large sweet spot - forum reviewers found its sharp zone slightly bigger than the Vortex Viper HD's
- ✓Well-controlled chromatic aberration thanks to ED glass - owners comparing it to the older Monarch 7 8x30 note the fringing is even better tamed
- ✓Only 16.4 oz and truly pocketable in a jacket - a real all-day-carry and travel binocular that doesn't feel like a toy
- ✓Smooth, fast focus wheel with no slop - a clear upgrade over the wobblier focuser on the previous Monarch 7 generation
- ✓Locking diopter, oil- and water-repellent lens coatings, and full waterproofing - premium touches rarely seen at this size and price
- ✓Excellent close focus around 6.6 ft for butterflies and dragonflies, plus flare suppression one birder found better than the pricier Leica Trinovid 8x32
- ✗Known glare/veiling issue under bright skies - a bright crescent can appear at the bottom of the view when panning upward, and some owners find it a dealbreaker
- ✗Very sensitive to eye placement - if your eyes aren't centered exactly right you get blackouts or that glare veil, so it punishes casual technique
- ✗15.1mm eye relief is marginal for eyeglass wearers - some spectacled owners can't quite see the full field
- ✗3.75mm exit pupil gives up real low-light performance to an 8x42 at dawn and dusk despite the impressive daytime brightness
- ✗Edge sharpness falls off in the outer 40% of the field - fine for birding, but not the flat-field view of a Monarch HG or Zeiss Conquest
- ✗Small body means less to grip - people with large hands find the ergonomics cramped compared to a full-size binocular
- ✗Included case and neck strap feel budget-grade for a $450 instrument
- ✗Made-in-China build (the old Monarch 7 8x30 was Japan) bothers some longtime Nikon fans even though quality control reports are good
Nikon Monarch M5 10x50 vs Nikon Monarch M7 8x30: common questions
Is the Nikon Monarch M7 8x30 bright enough to replace the Monarch M5 10x50 at dusk?▾
No. Its 3.75mm exit pupil is well below the M5 10x50's 5mm, and M7 owners say it gives up real low-light performance at dawn and dusk despite impressive daytime brightness. For twilight use the 10x50 is the right tool.
Which is better with glasses, the Nikon Monarch M5 10x50 or the Monarch M7 8x30?▾
The M5 10x50, with 19.3mm of eye relief that owners say lets glasses wearers use the full field. The M7 8x30 has 15.1mm, and some spectacled owners report they cannot quite see the whole view.
What is the glare problem on the Nikon Monarch M7 8x30, and does the M5 10x50 have it?▾
M7 owners report a bright crescent at the bottom of the view when panning upward under bright skies, worse with sloppy eye placement. Owners of the M5 10x50 do not report the same issue; their complaints center on its narrow field and long close focus.