10x42 vs 10x50 Binoculars

10×42 vs 10×50 Binoculars: Which is Best?

What is the best tool to use when you want to look at something that is a distance away from where you are standing? Binoculars, of course! However, consider this; which binoculars are best for you? If you want to weigh the differences between 10×42 vs 10×50 binoculars, you’ve come to the right place. It is your judgment that will determine which of the two is the best binocular for you!

10×42 vs 10×50 Binoculars: All The Key Differences Compared

10x42 vs 10x50 Binoculars: All The Key Differences Compared
Source: Unsplash

Weight & Build

When purchasing a product, especially binoculars, it is good to ask yourself which of the two is heavier than the other. Think about this: the weight of glass material is already heavy! Like a pair of reading glasses, glass contributes to making the image quality of binoculars better. The 10×50 binoculars require more glasses than the 10×42 binoculars, making the latter lighter and portable.

Now, it is time to think about the build of both binoculars! Of course, the build of the 10×50 binoculars is bigger than the 10×42 binoculars as the diameter of the 10×50’s lens is 50mm, making it 8mm bigger than the 10×42. This would also require the 10×50 binoculars to have larger barrels, while the 10×42 would require smaller barrels.

Field of View (FOV)

Out of a distance of 1000 yards, the field of view of the 10×42 binoculars is at least 330ft, whereas the field of view of the 10×50 binoculars is up to at least 315ft.

Image Quality & Performance

One of the most important things to think about when looking for the best binoculars is that you need to compare the quality and performance. No customer wants to buy a set of binoculars that do not have good image quality and terrible performance. How would they be able to see their target that is a good distance away if the image is blurry?

First, make note of two important things. One; if the surface area is larger, then more light can pass through. Two; depending on the size of the lens, the amount of light that passes through will show the amount of clarity and brightness of the image. 

In this case, the 10×50 binoculars are 8mm larger than the 10×42 model, indicating that more light can pass through, allowing it to create a brighter image for the viewer with better quality.

Eye Relief & Exit Pupil

Along with focusing on the quality of the binoculars, lighting and brightness plays a role in looking for the perfect binoculars for yourself. Are you receiving too much light? Not enough light? Which of the two gives the best amount of light? It is important to consider the size of the pupils in your eyes and the amount of light that is coming from the ocular lenses (exit pupils). 

In the 10×42 binoculars, the exit pupils are 4.2mm, causing a little more strain in the eyes. If the exit pupils are larger, the eye will be more relaxed and there will be less strain. The 10×50 binocular exit pupils are 5.0mm. 

The eye relief of the 10×42 binoculars is 15mm, whereas the eye relief of the 10×50 binoculars is 17mm, making it bigger than the 10×42 model.


Finally, it is time to compare the prices of the 10×42 model and the 10×50 model. Comparing prices of two products is practically a must when looking to buy something! It is a fact that the 10×42 model is cheaper than the 10×50 model. This is because the 10×42 model is much more popular and the materials needed for it can be ordered and made more than the specialized materials that are needed for the 10×50 model.


Woman using binoculars
Source: Unsplash

We’ve discussed the difference between the 10×42 binoculars and the 10×50 binoculars! We considered the weight & build difference, the field of view, the image quality & performance of both products, the eye relief and exit pupil of both products, and the price difference. As mentioned, it is important to ask yourself these questions before making the final decision:

‘Which is lighter than the other?’

‘Which has a better field of view?’

‘Which has the better image quality?’

‘Which has the better lighting and brightness in a low-light setting?’

‘What about the surface area?’

‘Which is set at a better price?’

 Now, the final decision to pick the best binocular is yours to make!

Written by Erica Farfan

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