The most important binocular terms
When you delve into the world of binoculars, you'll come across a lot of terms that you may not have heard before. It's useful to know what these terms mean. For example, all binoculars have an indication such as '8x42'. This first number represents the magnification factor. In other words, with 8x42 binoculars, your subject is brought 8 times closer. The second number is the diameter of the front lens. In this example, the front lens has a diameter of 42 millimetres. The larger this number, the more light will enter the binoculars, and the brighter the image will be. Do keep in mind that binoculars with larger front lenses are generally also heavier.
Decide what you will use the binoculars for
Taking binoculars outside with you is one thing, choosing the right binoculars is another. Start by determining what you will be using binoculars for. For example, it's important for bird watchers that their binoculars have a wide field of view, so the bird doesn't quickly disappear from the image. This is useful for anyone who wants to view moving objects or animals with their binoculars. Do you plan to take your binoculars with you often? While hiking, for instance? Then a compact pair of binoculars will be most suitable. These aren't too heavy, so you can carry them with you all day without any issues.
Waterproof binoculars aren't only useful in water sports. After all, there's always a chance of ending up in a heavy downpour. If you are viewing insects, it's important that the binoculars have a short focus distance. For a stargazer, a large exit pupil is important because this is usually done in the dark.
Do you wear glasses?
If you wear glasses, you should pay close attention to the eye relief when purchasing binoculars. This is the distance from your eye to the objective lens. If you wear glasses, choose binoculars with a minimum eye relief of 15 mm. If the distance is smaller, you won't have optimum vision through the binoculars while wearing your glasses. Many binoculars allow you to set this yourself.
Consider the magnification factor
Perhaps it seems this simple: the greater the magnification, the more you can see. Unfortunately, it works slightly differently with binoculars, because not only is the visible image enlarged, but the vibrations (which you often cause yourself) also increase. When you choose a magnification above 8, your brain is less able to compensate for the vibration in the image. So you either need a very steady hand, or a tripod. Not always handy if you want to take the binoculars into the woods.
We often get asked the question: 'Which is better, 8x42 or 10x42 binoculars?' The answer to this question is not easy, as it depends a lot on your personal preferences. Binoculars with an 8x magnification provide a better overview, while binoculars with a 10x magnification zoom in further. This is an advantage and a disadvantage at the same time. Want to watch a bird in flight? Then 8x binoculars are probably more suitable. With a 10x magnification, it is more important that you can keep your hands very still.