10×42 Vs 10×50 Binoculars – [Ultimate Comparison]

10x42 Vs 10x50 Binoculars – which one will you choose? This debate basically goes on and on….

Every outdoor lover like bird watchers, campers, hunters become a bit confused while choosing the right kind of binocular for their camping trips. In this regard, choosing either 10x42 or 10x50 Binoculars makes this selection procedure even more challenging.

Therefore, I have given deep thought to this argument. And, here, I have come with a comprehensive article where I am going to make a detailed comparison between 10x50 and 10x42 binoculars.

For your information, I always had some attraction to wildlife and outdoor recreation activities. And probably this is the reason I, as of this date, have used varieties of binoculars for the mentioned purposes.

Based on my personal experiences and observations, I have designed this comparison article so that every outdoor lover can get some benefits from the following discussion.

Let’s get it started then….

Before we jump into the comparison details, let me give you a brief idea about the mentioned binocular types –

What Does 10x42 Mean With Binoculars?

Figure 10x42 basically represents the power rating of the binocular, where the 1st number is the magnification, and the 2nd number is objective lens diameter. For the 10x42 binocular, the number 10 indicates that the magnification power of this binocular is 10. And the number 42 indicates that the objective lens diameter of this binocular is 42mm.

What Does 10x50 Mean With Binoculars?

Figure 10x50 basically represents the power rating of the binocular, where the 1st number is the magnification, and the 2nd number is objective lens diameter. For the 10x50 binocular, the number 10 indicates that the magnification power of this binocular is 10. And the number 50 indicates that the objective lens diameter of this binocular is 50mm.

10x42 Vs 10x50 Binoculars – The Differences

In this section, I am going to make a comparison discussion between 10x42 binocular and 10x50 binocular based on some important factors.

So, put your utmost attention while reading the following discussion –


The first factor on which I am going to start this comparison discussion is the size.

Well, it is pretty much obvious that for accommodating larger sized objective lenses, a binocular requires larger barrels.

According to this theory, a 10x50 binocular model needs larger-sized barrels because of the size of its objective lens diameter is 50mm.

On the other hand, a 10x42 binocular model requires smaller-sized barrels compared to the earlier one because its objective lens diameter is 42mm.

Larger To Which Extent?

In the case of the 10x50 binocular model, the diameter of the objective lens is 50mm. And, it is 8mm bigger than the 42mm objective lens diameter of the 10x42 binocular model. This size basically represents the ending point of the barrels.

However, if we make a move towards the ocular lens, then it taps down to almost the same size for both of these binocular models.

At the same time, the 10x50 binocular model is slightly longer than the 10x42 binocular model. But, to be honest, this difference is not a noticeable one. And we can ignore this difference as well.


Almost all of us know the fact that glass is a sort of heavy material. For a good quality binocular, glass is one of the essential elements. Also, larger lenses require more glass materials.

While manufacturing the binoculars, whether it is a 10x50 or 10x42 model, the designers require extra glasses. And they have to determine the glass material depending on the size of the binoculars.

For this reason, the 10x50 binocular model is a bit heavier than the 10x42 binocular model, if one uses the same glass materials for both. And this basically happens because of the binocular sizes.

Optical performance

In the case of binoculars, you have to keep in mind that the larger the surface area, the more light it can pass through.

We have already come to know that the 10x50 binocular model comes with a larger surface area than that of the 10x42 binocular model.

As a result, the 50mm binocular models tend to capture and pass more light than the 42mm models.

And, the amount of light that can pass through the objective lens determines how clear and brighter the images will be.

However, in a daylight condition, both 42mm and 50mm binocular models produce images of equal quality.

But, for dim light conditions (meaning before sunrise, or sunset or thickly wooded areas), the 50mm model will serve you with a brighter image.

Lens Coating

The lens coating on the objective lens plays a significant role in the case of producing a sharper and brighter image. And this helps you in spotting your target. Plus, it gives you a better view.

For a coated lens, you will find great differences using the same binocular from different binocular brands.

Whether it is a 10x42 or 10x50 binocular, it doesn’t matter because image brightness depends on the type of coated lenses used in the mentioned binocular models.

Image Quality

According to ADFG (Alaska Department of Fishing and Game), a pair of 10x50 binoculars will produce brighter images than the 42mm ones.


From the world-famous authors like Colonel John Henry Patterson and Aldo Leopold, we have come to know the binocular can provide us with numerous numbers of benefits.

In this section, we will discuss the benefits of our selected binocular models –

Benefits of 10x42 Binoculars 

The 10x42 binocular is slightly lighter than the 10x50 ones. So, if you are looking for a highly portable binocular, then the 42mm model can be the ideal option for you.

Besides, the price of the 42mm binocular model is also a bit lower than the 52mm model. So, if you have a tight budget, then you can go for the 42mm one.

Benefits 10x50 Binoculars 

The 10x50 binocular can give you sharper and brighter images than that of the 10x42 model. And this is because of the objective lens diameter.

Also, the 50mm binocular is the perfect equipment that you can pick if you want to use it in lowlight conditions.

Vortex Diamondback 10x42 vs 10x50 - which one is best and why?

Vortex Diamondback 10×42 Binocular


  • High-quality roof prism.
  • Multi coated lens system.
  • Extended field of view.
  • Affordable price.
  • Close-in focusing system.
  • Good quality carrying case.
  • Good quality rubber armor.
  • Can be used with a neck strap.
  • Lifetime warranty [No Questions Asked].


  • Minimal level of chromatic aberrations.
  • No attached lens caps.

Vortex Diamondback 10×50 BINOCULAR


  • Extra wide field of view.
  • Close Focus @ 7 feet.
  • Ergonomic and sleek design.
  • Lifetime warranty (VIP).
  • Compact design.
  • High-quality rubber armor.
  • Multi coated lenses.
  • Twist-up eyecups for adjustable eye relief.


  • A bit pricy compared to the Vortex 10×42 binocular models.
  • The distance or gap between the ocular lenses may create a hindrance to the view for smaller faced people.

Well, we can see that it’s a ‘TIE’ between the 10x42 Vs 10x50 Binoculars.

However, you can still make your final decision without much confusion –

If you are looking for a binocular that is affordable with the most needed features, then I would suggest you to go for the Vortex Diamondback 10x42 binocular model.

On the contrary, if you don’t have any budget problem, you can go for the Vortex Diamond 10x50 model.

Frequently Asked Questions 

1. Which is better 10x50 binoculars vs 1042 binoculars?

Answer: To be honest, I can’t give you a straightforward answer to this question as there are too many factors involved in drawing a logical conclusion regarding this debate.

It will be better, if you check my comprehensive discussion on 10x42 Vs 10x50 Binoculars for a clear understanding of this topic.

2. Which one is best for Bird watching?

Answer: For bird watching, a binocular model that comes with 10x magnification power is the right choice.

3. Which one is best for Deer hunting?

Answer: For deer hunting, I have found the 10x40 binocular more useful during the day time with the natural light setting.

4. Which one is best for Elk hunting?

Answer: Based on my personal hunting experience, I can say that a 10x50 binocular model serves best for elk hunting.

Final Words

But this time, you have got a PERFECT answer to this long-going debate on - 10x42 Vs 10x50 Binoculars.

I am pretty much CONFIDENT that you have got a clear understanding of this topic after reading the valid and thoughtful comparison I have made above.

Studies regarding Statistics of depth clearly tells that binocular is a piece of vital equipment for spotting and observing any 3D object (meaning hunting animals in the wild). But, choosing the right one can serve you with the BEST hunting experiences.

Since I have a great level of passion for binoculars and similar accessories, so I love to share valuable information throughout my blog. If you need any help or suggestion regarding binoculars, you can ping me at any time.

I will try my best to help you out.

Take Care!

10X42 binocular is the best
  • Features
  • Usability
  • Accessibility


VORTEX DIAMONDBACK 10×42 BINOCULAR is perfect overall


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