Nikon Monarch M5 12x50 Binoculars

Nikon Monarch M5 12x50 binoculars pair 12x magnification with 50 mm objective lenses for distant wildlife and outdoor viewing. The listing describes ED glass, roof prisms, waterproof and fogproof construction, and 16.4 mm eye relief. At 650 g in the specifications, they suit buyers prioritizing reach and larger objectives over a very light carry.

At a glance

The 12x magnification and 50 mm objectives are suited to observing distant subjects and gathering light, though the listed weight is about 650 g.
The listing specifies ED glass and phase-corrected, dielectric-coated roof prisms, which Nikon says are intended to reduce colour fringing and improve definition and light transmission.
Nikon describes a nitrogen-filled, O-ring-sealed design as waterproof and fogproof.
The listed 16.4 mm eye relief may be useful for viewing with glasses.

Price

$339.00Save 24%

Reference price: ~~$449.00~~

Price checked: Nov 14, 2026

View offer

Pros and cons

Pros

50 mm objectives and 12x magnification combine a large front lens with substantial reach for wildlife and outdoor observation.
ED glass and coated roof prisms are specified, with the manufacturer describing their role in reducing colour fringing and supporting image definition.
Waterproof and fogproof construction is claimed, with a slip-resistant rubber-armoured body described by the manufacturer.

Cons

The 12x magnification and approximately 650 g listed weight may be less convenient for extended handheld use or buyers prioritizing compact, lightweight binoculars.

Technical specifications

23 specifications

Identity
Brand	Nikon
Model	Monarch M5 12x50

Optics
Maximum magnification	12 x
Objective lens diameter	50 millimeters
Eye relief	16.4 millimeters
Exit pupil diameter	4.2 millimeters
Relative brightness	17.6
Field of view	293 feet
Apparent angle of view	60.8 degrees
Prism type	Roof Prism
Coating	Multicoated
Focus type	Center Focus
Focus feature	Central Focus Knob

Construction and features
Water resistance	Waterproof
Special features	Built-In Dioptric Correction, Fog Proof, High Magnification, Long Eye Relief, Slip Resistant
Material	Aluminum Rubber
Colour	Black
Age range	Adult

Dimensions and installation
Dimensions listed	16.51 x 13.21 x 2.54 cm; 649.77 g

Additional listing details
Specific uses	Bird Watching, Hiking & Outdoors, Hunting
Country of origin	China
Model number	16846
Warranty description	7 year limited warranty on non-optical components, Limited Lifetime on optical components

What to know before buying

Listing details to confirm

Listing details are inconsistent: one specification gives dimensions as 13.3L x 5.8W x 16.6H centimetres and weight as 650 g, while another gives 16.51 x 13.21 x 2.54 cm; 649.77 g. Confirm the dimensions and weight for the selected listing. The listing also calls the field of view 293 feet without stating a distance basis, so its viewing-width context is unconfirmed.

Who is it for?

A good fit for

Bird watchers and wildlife observers who want 12x reach and 50 mm objectives.
Hikers and outdoor users looking for claimed waterproof and fogproof construction.
Glasses wearers who may benefit from the listed 16.4 mm eye relief.

Less suited to

Buyers seeking pocket-sized binoculars or the lowest carrying weight.
Users who need an unambiguous field-of-view measurement before choosing.

Nikon Monarch M5 12x50 Binoculars · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 8 ratings

5 stars84%84%
4 stars0%0%
3 stars0%0%
2 stars16%16%
1 star0%0%

The supplied evidence includes aggregate ratings but no customer review text, so it does not establish specific praised features, complaints, or reasons for ratings. The distribution is mostly five-star with some two-star ratings, but the small rating sample offers limited guidance on how the 12x50 optics, weight, or outdoor sealing perform in individual use.

Frequently asked questions

Are these binoculars waterproof and fogproof?

The listing describes them as waterproof and fogproof, and says the construction is nitrogen filled and O-ring sealed. These are manufacturer claims.

Can I use them while wearing glasses?

The listed eye relief is 16.4 millimeters, and the manufacturer describes the high-eyepoint design as suitable for viewing with glasses.

Are they lightweight for hiking?

The listing gives a weight of 650 g in one field and 649.77 g in another. That is a notable carry weight for longer hikes compared with compact binoculars.

What comes in the package?

The package contents are not provided as a clear inventory in the supplied listing details. Check the selected listing for included accessories.