Prostaff P7 vs Monarch M5 - which should I buy?

The P7 has a wider field of view, lower weight, and costs about $80 less; the M5 adds ED glass for better chromatic aberration control and a slightly larger sharp sweet spot. Forum users who compared them side by side often found the difference smaller than the price gap suggests - if you're sensitive to color fringing get the M5, otherwise the P7 is the smarter value.

Is the Prostaff P7 better than the Vortex Diamondback HD?

They're extremely close. Owners who tested both found no difference in sharpness, with the Vortex a smidge brighter and more immersive and the Nikon about 30g lighter with a more manageable hinge. The Vortex VIP lifetime warranty is the usual tiebreaker for clumsy owners; Nikon's optical consistency is the tiebreaker for others.

Does the Prostaff P7 have ED glass?

No - that's the main thing separating it from the Monarch M5. You'll see some purple or green fringing on high-contrast edges like raptors against bright sky. Daytime birding at normal contrast looks clean, and many owners never notice it.

Is the P7 worth the upgrade over the Prostaff P3?

If you use binoculars at dawn, dusk, or in forest shade, yes - the dielectric prism coatings deliver a visibly brighter image, and you also get oil- and water-repellent lens coatings. If you mostly glass in full daylight, several owners say the P3 gets you 90% of the way for $60 less.

Are there known quality issues with the Prostaff P7?

The focus wheel is the one recurring complaint - a minority of owners report gritty, stiff, or uneven focus action and some exchanged their unit. Buy from a retailer with easy returns, test the focus travel and collimation in the first week, and a good sample should serve for years.

Is the Prostaff P7 good with glasses?

Yes. It offers long eye relief in the mid-to-high teens with multi-position click-stop eyecups, and most eyeglass wearers report seeing the full field with cups twisted down. It's on par with the P3 and better than most porro-prism alternatives at the price.

Full-Size

~$170

Nikon

Nikon Prostaff P7 8x42

Name: Nikon Prostaff P7 8x42
Brand: Nikon
Price: 170 USD
Availability: InStock

The Nikon Prostaff P7 8x42 is a mid-range 8x42 full-size binocular designed for birding and wildlife observation. It features quality optics with multi-coated lenses with fully multi-coated surfaces and a 383 ft @ 1000 yds field of view. Backed by Nikon's Limited Lifetime warranty.

Approx. price

$170

Optic

8x×42

FOV @ 1000 yds

383 ft

Use Case

Birding

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Specifications

What do these mean? →

42mm

5.25mm

383 ft @ 1000 yds

19.5mm

6.5 ft

Roof

Standard

Fully Multi-Coated

5.6 x 5.1 in

20.5 oz

Limited Lifetime

Field of view, to scale

Why FOV matters →

you2505007501000 yds

Distance200 yds

Nikon Prostaff P7 8x427.3°

77 ft wide at 200 yds ≈ 1.9 school buses

Top-down view · drawn to true scale — no exaggeration

Wondering about the format itself? 8x42 vs 10x42 · 8x42 vs 10x50

Key Features

ED Glass

Phase-Corrected

Dielectric Coating

Fully Multi-Coated

Waterproof

Fogproof

Locking Diopter

Image Stabilized

Tripod Adaptable

Magnesium Body

Owner Insights(120 discussions)

The Prostaff P7 8x42 occupies a sweet spot that forum regulars keep rediscovering: it's the cheapest Nikon with dielectric prism coatings, and in blind side-by-sides owners consistently find it nipping at the heels of the Monarch M5 for $80 less. The recurring theme in comparison threads is surprise - people buy the P7 as a stopgap and then can't justify upgrading, with more than one M5 owner admitting that if the P7 were a bit cheaper they'd 'send the M5 back and keep the P7'. Its wider field of view and lower weight actually beat the M5 on paper in two of the specs birders care about most.

The view is bright and crisply sharp in the center, with the dielectric coatings giving it a clear low-light edge over the silver-coated P3. What it lacks is ED glass, so you'll see color fringing on backlit birds that the Monarch M5 controls better, and edge softness is ordinary for the class. Ergonomically it's a winner - light, slim-bridged, grippy, with long eye relief and genuinely useful oil- and water-repellent exterior coatings. The one recurring quality gripe is the focus wheel: most units are fine, but enough owners report gritty or uneven focus action that checking your sample early is standard forum advice.

Best for: birders and hunters who want 85% of Monarch M5 performance at Prostaff money, and low-light users stepping up from the P3. Against the Vortex Diamondback HD 8x42 it's a coin flip - the Vortex is a touch brighter and more immersive, the Nikon is lighter with better handling - though Vortex's no-questions warranty sways some buyers. If purple fringing on high-contrast subjects would bug you, pay up for the Monarch M5's ED glass; otherwise the P7 is the value pick in Nikon's whole sub-$250 lineup.

Pros

+Dielectric prism coatings at a $170 price point - a genuinely brighter image than the P3 and most direct competitors
+Wider field of view than the Monarch M5 - forum users doing side-by-sides call the FOV and weight 'a definite win for the P7'
+Light for a full-size 42mm roof, noticeably easier on the neck than the Vortex Diamondback HD it's often cross-shopped against
+Sharp central image that owners say matches binoculars well above its price - several M5 buyers admitted the gap was smaller than expected
+Oil- and water-repellent coatings on the outer lenses - rain beads off and fingerprints wipe clean, a feature usually reserved for pricier glass
+Fully waterproof and nitrogen-purged with a reassuringly grippy rubber armor
+Long eye relief with click-stop eyecups keeps eyeglass wearers happy
+Slimmer single-hinge-style handling than the Diamondback - owners praise how manageable the bridge is for one-handed use

Cons

−No ED glass, so chromatic aberration is visible on high-contrast subjects - the main optical gap versus the Monarch M5
−Focus wheel quality is the most repeated complaint - some units feel gritty or inconsistent, and a few owners exchanged theirs
−Edge-of-field softness is noticeable when panning, typical of the class but behind the Monarch line
−Accessories remain budget-grade: basic strap, soft pouch, and lens caps owners routinely lose
−Only a modest step up from the P3 in daylight - some owners say the extra $60 only shows at dawn and dusk
−Occasional sample variation reported on forums - worth checking collimation and focus feel on arrival
−Glare suppression is average when shooting toward low sun
−Resale value is soft because the Prostaff name sits in Nikon's budget tier, even though performance is closer to mid-tier