How Far Can You See With 10×50 Binocular

How Far Can You See With 10x50 BinocularDuring the last decades, there has been a large number of people being interested to buy the best marine binoculars. And among them, there were people who sought binoculars for watching birds, hunting, viewing nature and passion. But, as much as you hate to admit it, not many people know how far they can see or view with their binoculars neither their features nor specifications.

As one would need to check different specs and features, most people have gone for 10×50 or 10 by 50 binoculars, or whatever you may call it. But a question does arise, How far can you see with 10×50 binoculars?

With that in mind, let’s see the major things regarding the 10×50 binoculars or 10 50 binoculars so that you can come to understand how far you can see with it.

Features That Determine the 10×50 Binocular’s Magnification


The magnification is always indicated by the first number in a binocular. And in a 10×50 or 10 by 50 binocular, 10 is the power of the magnification of the binocular. Magnification basically means how much the image is enlarged by the binocular we see-through. Here, the image will be enlarged by 10 times by the binocular than we see in the naked eye.

You would be mistaken if you think a more powerful binocular is better. As the more powerful the binocular is the harder it gets to carry and handle as it is heavier than 10 50 binocular or 10×50 binoculars. Not to mention the image stabilization as it is tougher to handle the binocular while watching.


In the specs of a binocular, the second number indicates the diameter of an objective lens of a binocular. In the 10×50 binoculars or 10 50 binocular or whatever you may call, the diameter of it is 50mm (millimeters). Generally, it is located at the frontal part of binocular apart from the eyepiece.

lens for best marine binoculars

It mainly absorbs the light and forms a clear image of further objects by far 10x. The larger the diameter of the objective lens is the brighter the image is going to be as more light enters into it. Getting a better image in clarity is very important and a high-quality 50mm lens fits the role in it.

3.Size of The Exit Pupil

The size of the exit pupil is very important in this case of getting it to work on low light conditions. The size of the exit pupil refers to the diameter of the light beam that passes through the eyepiece. To know the exact exit pupil size of your binocular, you should divide the value of the diameter of the objective lens by the power of the magnification of the lens.

exit pupil of marine binoculars

And, the exit pupil size of 10×50 binocular is 50/10 or 5mm.In the daytime, normally eye pupil contracts about 2-4 mm. But, at night time, the eye pupil becomes wider up to 7 mm. A binocular of exact 4 mm exit pupil may seem clearer, but in case the light beam gets wider than that of your eye pupil, you won’t be able to see through. And, at night the 4 mm would be dim compared to the 5mm one.

Angle of View

Generally, when your angle of view gets larger, your field of vision will also be wider. And normally while checking on binoculars, many people skip the specs written on the binocular and the user manual.

In the naked eye, the angle of view is normally ranged from 40 to 80 degrees. When you are buying binoculars, if there is a label except for the power and magnification, with a degree sign, then that is the actual angle of view measured from the objective lens of the front part of binocular.

Field of View

The field of view determines the width of an area seen by a binocular from 1000 yards apart or 1000 meters apart. Generally, you would use a binocular to see further objects, but to fully grasp the configuration of your binoculars, you need to check how of the area you can see while focusing on that area.

Suppose, your field of view of 10 50 binocular is 450 feet, then this means that you can see a 450 feet wide area while viewing things at 1000 yards.

And, with 10×50 binocular, you can see the objects at 10x times larger from 1000 yards apart. But, if you would like to increase the field of view by buying an expensive binocular just for that, it would be a poor investment on your part.

How Far Can You See With 10×50 Binoculars

Now, you might have thought that why did you have to go to such lengths of knowing the specification part, while it could have just explained how far you can see with 10×50 binoculars in the first place.

Well, first of all, the answer to this question is not exact. As it depends on the magnification and uses of the binocular. It is a simple fact that the binocular can see anything that your eye can see, but the binocular of the 10×50 or 10 50 one just views 10 times bigger while your eye sees with 1x.

How far can you see with 10x50 binocular


Your eye can see a ship sail into the great beyond at around 12 miles. Along these lines, your binoculars can likewise observe 12 miles and will see the ship 10x bigger, yet that probably won’t enable you to recognize without question.

Suppose, a ship is sailing and it can be seen from 10 miles away. Now, how the image is seen on the 10x binocular? Well, it will appear like its 1 mile away. So, how much can you see in detail from a mile away? Not much. Now, the thing is, you have to understand that for which specific purpose you are going to use it for and how far you want to look. Then you can choose a specific magnification type that allows your image for your desired clarity.

You don’t want to pick a large magnification one that is too heavy to carry and use. And that’s the gist of how far you can see with 10×50 or 10 50 or 10 by 50 binocular. For more information, you can read the questions & answers of Binocular.

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