Vortex diamondback 10×42 vs. 10×50 – Which is better for long range shooting?


Choosing the right scope is a combination of different factors. Knowing your purpose for getting a scope plays a big role in your selection process. While the terms used to define scopes may seem complicated, they are essential in getting you theright scope

When you are in the market in search of an ideal scope, you are going to be confronted with different specifications that do not make sense at the time. Having the wrong scope will frustrate your hunting options as your visibility will be hindered.

Vortex has been in the market for decades. In the process, they have built for themselves a reputation for high craftsmanship in the area of quality glass optics. There diamondback series is a top seller due to its ergonomical design and affordable price. In this review, we check out two of their models – vortex diamondback 10X42 and 10X50 and tell you which is the best.

What are the differences between the Vortex diamondback 10×42 and 10×50?

Vortex diamondback 10X42
3.5-10X ( the key difference between these scopes is the objective lens diameter. Most of the other specifications remain the same. You can opt for the 10X50 over the 10×42 due to long range capabilities and ability to shoot in low light conditions)
Field of View
35.8-13.5 feet/100 yards
35.8 to 13.5 feet/100 yards
16.2 oz.
16.2 oz.
Objective lens diameter
Eye Relief

Vortex diamondback 10×42 vs. 10×50 – How do they differ?


There is very little difference between the Vortex diamondback 10X42 and 10X50 besides the objective lens diameter. Both scopes are made from a single piece aluminum construction that makes them durable enough to withstand any kind of droppings. The scopes are fully multi-coated to reduce glare and ensure maximum light transmission. The scopes are also hard anodized and this reduces glare while giving you some camouflage during hunting expeditions. All these features help ensure the scopes are waterproof, fog proof and shockproof. In terms of design and scope features, these scopes are very similar with the only difference being the 10X50 has a larger objective lens.


The glass quality and clarity on both scopes is quite amazing. You have a fast focus eyepiece which allows the user to enjoy easy and quick reticle focusing. The scopes also have capped reset turrets that are ideal for re-indexing your scope to zero after sighting. The reticles offered for both scopes are either the V-Plex or the dead Hold BDC. With the BDC you have the Plex with range and lead dots appearing on the 6 o’clock and the horizontal inner stadia. The scopes are pre-parallaxed for 100 yards and you experience minimal recoil. The dead hold BDC (MOA) is a great reticle as it helps eliminate guesswork that relates to Windage corrections and holdover. You can shoot at varying with the scope at varying ranges without any problems. Due to the 10X50 having a larger objective lens diameter, it will be ideal for extreme long range shooting and in areas with low light conditions.

Vortex diamondback 10×42 vs. 10×50 – A Comparison Overview

Vortex diamondback 10×42 – Overview

Vortex Optics Diamondback 4-12x40 Second Focal Plane Riflescope - Dead-Hold BDC Reticle (MOA) with Baseball Hat
  • The Diamondback 3.5-10x50 riflescope is one of multiple configurations in the Diamondback lineup and is...
  • Dead-Hold BDC reticle is good for any hunting or shooting at varying ranges where estimating hold-over...
  • Lenses are fully multi-coated for crystal clear, bright images from dawn till dusk The fast focus...
  • Metal on metal precision turrets offer the ability to zero reset after sight-in A precision glide erector...

The Vortex diamondback 10×42comes in a one piece 1 inch aluminum tube with the magnification ring on the scope been deeply edged into the scope. You can get the scope in either a V-Plex or dead hold BDC reticle. This reticle is ideal for big game, slug shotgun, muzzleloader among other long range applications. The scope construction is strong enough to withstand magnum recoil.

The diamondback scope is designed to be fog proof, waterproof, and shockproof. It also comes with a large 50mm lens that is fully multi-coated to prevent anti-glare and improve light transmission. The Dead hold BDC reticle customized design will help the user eliminate any guesswork that result from Windage corrections and holdover.

The scope comes with a precision glide erector system that ensures you get the best smooth magnification adjustments even when the conditions are harsh. The capped turrets in the diamondback allow indexing to zero after you are done sighting with the scope. The fast focus eyepiece in the scope will allow quick and easy reticle focusing. Lastly, the vortex diamondback has hard anodized durable anti-glare finishing that also act as camouflage.


  • The second focal plane reticle maintains the same size as the magnifications
  • Single piece aircraft grade aluminum tube for added durability
  • Waterproof and shockproof
  • Capped reset turrets that re-index to zero
  • Hard anodized for glare reduction and camouflage
  • Fast focus eye piece
  • Dead hold BDC reticle eliminates guesswork associated with Windage and holdover corrections


  • Glass may suffer fog issues in extreme weather conditions

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Vortex diamondback 10×50 – Overview

The Vortex diamondback 10X50comes with the standard 1-inch tube common in most riflescopes. Its dead hold BDC reticle is ideal for hunting varmint, big game and for long range applications. The scope can withstand a lot of dropping due to its sturdy one-piece aircraft grade aluminum alloy construction. It can also withstand a lot of magnum recoil.

The scope is argon purged to make it fog proof and is also waterproof and shockproof. It comes equipped with a large 50mm objective lens that allows maximum light transmission. The scope is also fully multi-coated to prevent it from glare. The optics on the scope are clear and crisp hence making it an ideal scope for hunting in varying weather conditions. The scope also comes with precision-glide erector systems that ensures smooth changes to the magnification even when the climatic conditions are not favorable.

The Vortex diamondback 10X50 comes with a fast focus eyepiece that enables the user to enjoy easy and quick reticle focusing. It also has capped reset turrets that will allow you after sighting the scope to re-index to zero. The reticle also has a second focal plane reticle that maintains the same size in spite of the magnifications.


  • Fast focus eyepiece
  • Shockproof, waterproof and fog-proof
  • Single one-piece aluminum construction makes the scope durable
  • Fully multi-coated lenses ensure maximum light transmission
  • Precision glide erector system


  • A bit heavier than standard scopes

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Verdict: So, which is better – Vortex diamondback 10×42 or 10×50?

These scopes are almost similar in every dimension besides the objective lens. The glass clarity is good courtesy of full multi-coated lens coating and it being hard anodized. This means the scopes are good for anti-glare and camouflage. If your intentions are to get a scope that is ideal for long range shooting then the Vortex diamondback 10×50 will perform better than the 10X42. The scope will also be ideal for shooting in low light conditions as you get a wider field of view and a more flexible larger exit pupil.


What are the benefits of getting a larger objective lens like in the vortex 10X50?

Scopes come with varying objective lens diameters. Larger sizes are recommended for those interested in long range shooting as you get a brighter and wider field of view. The scope is also ideal for shooting in low light conditions.

What are the reticle options for the vortex diamondback 10X42?

You can get the scope in either dead hold BDC or V-Plex reticle


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