Vortex Diamondback vs. Nikon Prostaff 5 – Which pair of binoculars is better for long distance viewing?

Vortex Diamondback vs. Nikon Prostaff 5

Your personal requirements and preferences are important when trying to find the best binoculars for your outdoor escapades. When you are choosing a pair of binoculars for long distance viewing, you should consider their field of view, lens quality and magnification power among other important features.

At times, I find myself perusing through the Outdoor Life Magazine to keep myself informed about camping, hunting, fishing and survival. This has taught me that high powered binoculars are used for multiple purposes of which each one of them have different performance levels based on long distance and close range viewing. Among two pairs of binoculars whose optical performance in long distance viewing I am impressed with, are the Vortex Diamondback and the Nikon Prostaff 5. In this review, we take a look at their top features and differences to deduce which of the two is better for long distance viewing.

What are the differences between the Vortex Diamondback and the Nikon Prostaff 5?

Vortex Diamondback 8 x 42
Nikon Prostaff 5
Focus type
Physical Dimensions

(Length x Width)

5.7 x 5.1 inches
6.5 x 5.1 inches
Product weight
618 grams
646 grams
8 X
8 X
Objective Lens Diameter
42 mm
42 mm
Field of View

(Linear/ Angular)

393 feet at 1000 yards / 7.5 degrees
330 feet at 1000 yards / 6.3 degrees
Minimum Close Focus Distance
5 feet
16.4 feet
Eye Relief
17 mm
17.6 mm
Exit pupil diameter
5. 3 mm
5.25 mm
Interpupillary Distance
55 – 73 mm
55 – 72 mm
Tripod Adaptable
Housing features
Argon filled sealed with O- rings
Nitrogen filled sealed with O-rings
Weather resistance levels
Fully waterproof and Fog proof
Fully waterproof and Fog proof

Vortex Diamondback vs. Nikon Prostaff 5- How do they compare?

Construction Quality and Ergonomics

The Vortex Diamondback has a better construction quality than the Nikon Prostaff 5 which makes it more durable and more versatile for all your hunting, fishing and wildlife watching needs. In regards to portability and comfort, the Vortex diamondback is lighter and more comfortable to carry around than the Nikon Prostaff 5.

The Vortex Diamondback is more versatile because it is Argon filled and sealed with O-rings than the Nikon Prostaff 5 which is Nitrogen filled and sealed with O-rings. Generally, Argon molecules are bigger than Nitrogen Molecules which give a tighter seal. This means that, the Vortex diamondback is able to remain intact whenever your binoculars accidentally experience a hard fall.

Optical performance

The Vortex diamondback has better optical performance than the Nikon Prostaff 5 which makes it ideal for not only long distance viewing but for almost all your outdoor observation needs. They both feature powerful magnification and a generous objective lens. Their difference however is seen in their minimum close focus distance and their field of view where the Vortex Diamondback has a wider field of view and a better close focus than the Nikon Prostaff 5. 

Their eye relief exit pupil diameter and the interpupillary distance are almost similar but the Vortex Diamondback has more breathtaking views than the Nikon Prostaff 5. The Vortex Diamondback also has higher performance in low light conditions than the Nikon Prostaff 5 because of its light gathering abilities.

Vortex Diamondback vs. Nikon Prostaff – A Comparison Overview

Vortex Diamondback

Vortex Optics Diamondback Roof Prism Binoculars 8x42
  • 8x magnification and 42mm objective lenses, these Diamondback binoculars are the workhorse of Vortex...
  • Dielectric, fully multi-coated lenses transmit more light and clearer, brighter images. A field of view...
  • A sleek, short hinge design with rubber armor and thumb indents leaves more room for your hands creating...
  • Multi-position eyecups twist up for adjustable eye relief. A right eye diopter accomodates for focal...

The 8×42 Diamondback pair of binoculars features a wide field of view, a generous objective lens and a close focus distance to meet all your hunting, fishing and wildlife/ bird watching needs. It comes with a GlassPak harness to provide you with comfort during hours of observation. Its lenses are fitted with ArmorTek exterior coating which protects them from oil, dust and scratches.

Through the use of an index-matched lens configuration, ultra-high definition glass, dielectric and phase-correcting coated roof prisms and XR Plus lens coating the Vortex Diamondback render views with exceptional color fidelity, optimal light transmission, minimal chromatic aberration and edge- to-edge sharpness. Its binocular housing is filled with Argon and sealed with O-rings which contributes to its high weather resistance levels and durable protection against debris and dust.

It has a non-slip rubber armor for added grip in wet conditions and it features a large focusing knob which makes them easy to use even when you are wearing gloves during observation. If you would like a hands-free use of your diamondback binoculars and to have a more steady view, you can mount it on a tripod.


  • Portable and easy to use
  • Exceptional image clarity
  • Versatile and durable
  • Wide field of view and a close focus distance


  • Slightly rigid middle hinge

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Nikon Prostaff 5

Nikon 7570 PROSTAFF 5 8X42 Binocular (Black)
  • See the outdoors up close in bright, lifelike color thanks to fully multicoated lens and prism system
  • Carry the PROSTAFF 5 with you on every adventure without fatigue thanks to the lightweight,...
  • The PROSTAFF 5's retractable eyecups and long eye relief provide a comfortable view for everyone, even...

The Nikon Prostaff 5 come in a black color and an ergonomic design to fit all your hunting, fishing and outdoor observation needs. With 8x magnification you are able to closely view objects and their objective lens boost their light gathering abilities so that you can view images in low light conditions. Also, due to features such as long eye relief, optical coatings and a decent angle of view, you are able to enjoy clear and bright views at all times of day.

They have been fitted with a black rubberized armor and a polycarbonate chassis for their durability and their comfort. The binocular housing of the Nikon Prostaff 5 is nitrogen filled and sealed with O-rings which makes them waterproof, dustproof and fog proof. They have a rain guard on the eyecups which keeps them intact during rainy weather.

The exterior of the Nikon Prostaff 5 has a large center focus knob which you can adjust easily to change your focus and it can also be turned with gloves on. The diopter ring of the Nikon Prostaff 5 also contribute to ease of focus and they have adjustable eyecups that you can twist up and down based on your preference.


  • Impressive image quality
  • Portable and Durable
  • Eco-friendly material and user-friendly nature


  • The overall construction build could be tougher
  • You can easily misplace the eyepiece covers

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The Vortex Diamondback and the Nikon Prostaff 5 both have sustainable optical performance and ergonomics. However, comparing the two in terms of their optical performance and their construction quality one tends to rank above the other.

Verdict: So, which is better, the Vortex Diamondback or the Nikon Prostaff 5?

The Vortex Diamondback binoculars are better than the Nikon Prostaff 5 when it comes to long distance viewing. It has a better field of view and allows you to comfortably use it in both daylight and low light conditions. Additionally, it is more durable and more versatile so you do not have to continually seek an upgrade.


How friendly are the Vortex Diamondback binoculars for anyone who wears glasses?

They have adjustable eyecups that you can twist up and down to accommodate anyone who wears glasses.

Are the Vortex Diamondback binoculars good for hunting?

Yes, they are. The Vortex Diamondback binoculars provide you with clear and bright views even in low light conditions such as dawn and dusk. They also have a high weather resistant level which makes them ideal for outdoor adventures such as hunting.


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