What do the numbers mean on binoculars? For a novice, the numbers on the binoculars don’t make any sense. And if you’ve made it this far, I guess you’re one of those people. Some people think it is a name for a specific model, or really don’t know what it means, and that is the problem we are going to solve today.
Why is it important to know what those numbers mean?
If you are not planning to buy or use a pair of binoculars, don’t worry, you really don’t need to know this. But chances are if you plan on doing any one of them it’s tremendously important to know what they’re for. you don’t want binoculars that are not optimal for the purpose you are buying it from, most people think that the highest numbers in binoculars is the best, but that is not the case unless there is a need for a pair with high magnification and large objective lens diameter .
They just mentioned two very important words.
The first number displayed is magnification, which is how many times more you can see with this pair than your own eyes. The magnification can range from 6x to 14x on binoculars (or sometimes higher), and they are useful for different things. If you are bird watching, you may want to be able to look at birds from a long distance so as not to scare them, whereas when you are looking at something at a closer range you may simply see parts of objects as it is too close to look at them with the same magnifying power.
Be sure to find out what the main purpose is with your binoculars before buying a pair. Of course, you can sometimes use them for different things, but the type of binocular you need if you are hunting, birding, or stargazing varies greatly. So find out the main purpose.
Objective diameter of the lens
The objective diameter of the lens adjusts the amount of light that is allowed to enter the binocular. Having a wide lens diameter often provides a brighter image than a smaller lens does, on the other hand, the wider the lens, the heavier it is. The same question returns again, what exactly will the binocular be used for? Do you need compact binoculars so you can carry them for hours while hunting, or do you need to be able to let in more light (if you’re using them in the woods or at sunrise, for example)?
And that’s what the numbers on the binoculars mean! How far and how light do you really need? Usually the higher the numbers, the more expensive, but it doesn’t always mean better. So choose wisely.
Aperture is controlled by objective lenses, or lenses farthest from the eyes when binoculars are in use. Unlike the magnification number, the aperture number actually refers to the size of the objective lenses. The number represents the diameter size of the objective lenses in millimeters. The higher this number, the wider the lenses will be and the more light they will accumulate when used. Although written on camera lenses, this is a great article that explains the aperture. The size of objective lenses also affects the physical size of a pair of binoculars. The larger the size of the objective lenses, the larger the binoculars housing will have to be. Although different materials are used as covers, this also means that the weight of a pair of binoculars will increase with the number of openings. This is something to think about when binoculars are used especially in the hand.
A good pair of binoculars with a small objective lens diameter will probably be best used for light track work or as a reserve game that can be stored in a glove compartment. Binoculars with larger aperture characteristics can be used for more intense activities where the amount of light is very important to the end result. For example, a set of binoculars with an extremely large diameter objective lens would be perfect for the astronomy hobby. While binoculars probably won’t be able to achieve the same results as a telescope, they are a portable and flexible way to stay in tune with the stars without being too charged.
While the binocular numbering system can be a bit intimidating at first, breaking the set up into individual components can make it much easier to determine the best match for a specific task. And, the best way to really understand the system is to go out and try on a pair for size. Many retailers will be more than happy to allow testing of a pair of binoculars so that the customer is happy and confident with their purchase.