Binoculars are considered to be one of the most easy-to-use and handiest optical instruments and this is why it is widely used by people of all age groups, across the globe. In fact, studies show, that these devices are only next to eyeglasses in terms of the widespread use. Binoculars usually look like two telescopes, linked together, following some mechanical procedures. These devices also differ from the telescopes, since prisms refract the light in these. This, in turn, makes binoculars one of the most compact devices, without compromising the quality of image. It’s true that most of us have seen or used these devices at some point of time, but not all of us take the pain to invest into one. While it’s true that binoculars don’t have wide usage for many people, there are professionals like bird watchers, sports lovers and nature enthusiasts for whom these devices are necessary.
No matter whether you need a binocular for your profession, or you just want to have one out of passion, it’s important to know the specifications of this smart optical instrument before you invest into one. Having a detailed beforehand knowledge will surely help you choose the most suitable binocular for yourself. Here are some of the major things that you need to look for while buying a binocular –
- Objective lens diameter – The objective lens is an important component of a binocular as this is what through which you look at the objects. The size of this lens is important since it determines the total amount of light which enters the device. This means, if you have a device with bigger diameter objective lens, it will help you see better images even in low light conditions.
- Magnification – The magnification of a binocular is a number which is written with an x. This means, if the device says 10x, it can magnify the object ten times. This ensures if you are looking at a bird, which is actually 1000 metres away, it will appear to be located at a distance of 100 metres when you look through the binocular. Usually, it is advisable to opt for a device with a magnification, ranging from 7x to 12x. If you are planning to use an optical device with a magnification rate more than this, it is advisable to use that along with a tripod.
- Coating and lens quality – The coating of the lens is an important part to look for while buying a binocular as this is what decreases the amount of light that is reflected and also allows maximum possible amount of light to enter the device. At the same time, the quality of the lens ensures that the images you get to see have better contrast and are absolutely aberration free. You should keep it in mind that the best lenses work better in low light conditions since these transmit more amount of light. It should also ensure that the colours of the images are not distorted or washed out.
These are some of the basic components that you need to look for while investing in binoculars.