What do binoculars numbers mean?


The only way you can choose between several pairs of binoculars is to learn what the numbers mentioned in the product description actually mean. This can be a tad confusing for someone that has never used binoculars. It’s important to understand what each number is associated with because this way you can get the binoculars that are more suitable for your needs. For instance, individuals that are searching for a pair to use on their hunting game won’t buy the same model that goes swell with stargazing activities.

The first number you’ll notice indicated the power magnification of the binoculars or how many times the unit can make the object you are viewing to appear closer than it would with your naked eye. The magnification uses the ocular lenses which are close to the eye but don’t have any major impact on the level of magnification. Sometimes smaller lenses provide a higher magnification.


However, a higher magnification isn’t necessarily a must because even though the binoculars bring the image much closer but it will alter with the clarity. Basically, you won’t be able to see the fine details and the surrounding objects. If you want to purchase an item in order to do some birdwatching or see a sports game from a far distance, you definitely shouldn’t go with a large magnification.


Also, units that come with a powerful magnification are less stable and if you have the tendency to shake your hands, you won’t get to benefit much from this type of binoculars. Therefore, consider your ability to hold them for a longer period of time and the purpose.

The second number found in the designation is related to the aperture of the item. This feature is controlled by the objective lenses, those that are the closest one to your eye when viewing the images. The number pointed out in the description is indeed the size of the diameter of the objective lenses. Normally, the numbers are expressed in millimeters. If the number is increased, then the lenses are mode wide, thus, there’s more light they collect.

Nevertheless, the size of the objective lenses has to do with the casing of the binoculars. So when you buy a pair with a large aperture it will clearly be heavier than normal. If you don’t mind carrying that extra weight with you, you won’t mind this issue.

Binoculars outfitted with a small objective lens diameter are more suitable for outdoor activities such as hiking, camping, backpacking, or birdwatching. On the other hand, tools that are equipped with a higher aperture are excellent for intense activities where it is crucial to get as much light as possible.

The best way to understand which pair satisfies your personal needs, you should try as many pairs as possible and decide accordingly.



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