Nikon Monarch 5 10X42 Review: The Competitor!

Nikon monarch 5 10×42 Binoculars. A Competitor to the Vortex Diamondback. It has to be a great. Wouldn’t it? An excellent under 300$ binocular. We are going to dive deep into why purchasing this one is worth it. 


  • Excellent build quality.
  • Excellent optics quality.
  • ED glasses.
  • Multi-coated.
  • Good pricing.
  • Roof prism design.
  • Lightweight and really compact.


  • Eyecups seem loose to some glasses users.
  • You need to buy a neck strap separately.

Nikon Monarch 5 10×42 Review: Specs & Outlooks

Objective Lens42 mm
Eye Relief18.4 mm
Exit Pupil4.2 mm
Linear FOV @1000 Yards288 ft.
Close Focus7.8 ft.
Weight21.6 Oz.

Body Quality

The body is not made out of aluminum. Instead, Nikon used polycarbonate with reinforced fiberglass. The body quality is just fabulous.

You can’t even say it’s made out of polycarbonate at first glance. The binocular is built really sturdy. Thanks to the reinforced fiberglass the body quality feels tons better. And like most high-end binoculars the body has a rubber armor coating around it.

The rubber armor coating has many roles in a binocular body. The main reason is to give a more comfortable grip when you hold it bare hand.

The rubbery texture gives an extra grip and assurance that the binocular won’t slip from your hand. Also if you are to drop it on accident then the rubber armor would act like a cushion and try to minimize the damage. 

You won’t have any complaints regarding it.

Optics Quality

Nikon has been known to provide some of the best if not the best camera lens to this day. When it comes to Nikon we can blindly trust their lenses. Their reputation is just that good.

So, let’s talk about the ED glass a bit. Yes, monarch 5 feature ED (extra-low dispersion) glass. ED glass eliminates the chances of chromatic aberrations. Not only that it also increases the low light performance.

Thanks to ED glass you will see the accurate color contrast in the images you click through the monarch 5.

On top of the ED glass, the lenses are multi-coated. Making the monarch 5 unbeatable when it comes to low light performance. If you are someone that needs a good low light performance you will appreciate the monarch 5 really highly.

TLDR: the optics are top-notch, some of the best you will find in the 300$ range.


The monarch 5 10×42 has a 10x magnification and a 42mm objective lens. With this configuration, the monarch 5 10×42 offers 288 ft of field of view @1000 yards. 10x is more than enough for a lot of people.

10x magnification is a lot trust me it is. The 42mm objective lens gathers light excellently. resulting in vivid and color-accurate images. 

Thanks to the ED glasses even at 10x you don’t see any chromatic aberrations or distortion.

Light Transmission

An important thing about any lens-related object is how good the light transmission is? If the light transmission is not good then ultimately it will affect your image quality.

You won’t get the images you expected to see or get a decent image quality at low-light. You don’t have to worry about that here.

Like we already mentioned the lenses of monarch 5 uses ED (extra-low dispersion) glass for their lenses. ED glasses are excellent for binoculars, scope, telescope, etc. With the correct coatings (that monarch 5 has) the binocular performs just excellent. 

Nikon Monarch 5 10×42 Review Summary

We become agree that it’s one of the best binoculars under 300$.

We got a review of that one too. Check that out. Meanwhile, if you still feel confused between the two then you can also check our Nikon monarch 5 vs Vortex diamondback guide to choose the best for you.

There is no way of denying how good of a binocular Nikon monarch 5 is. But if you have budget issues you can always go for Vortex diamondback. This binocular will blow your mind away by its performance.

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