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    A Look at How Binoculars Work

    Last updated 3 months ago

    Binoculars are optical instruments that provide long-range, three-dimensional viewing. Whether you are hunting, bird-watching, or taking in a ballgame, a good pair of binoculars can help you see more and see better. In order to understand the different features that affect price and the features that are right for you, here is a look at how binoculars work.

    Refraction

    Binoculars work on the basic principle of refraction. Imagine water sitting in a glass. While the water appears to have a straight upper edge, it is actually curved ever so slightly (this is called the meniscus). Now, if you were to place this glass of water on top of a newspaper and look down, the news print will look slightly magnified.

    Converging Lenses

    Binoculars are simply two telescopes side-by-side, one for each eye. Each telescope uses two convex lenses, also known as converging lenses, which brings distant light rays into focus and makes distant objects appear bigger in through the eyepiece. The first lens (the objective lens) catches light rays and makes a focused image a short distance behind the lens, while the second lens (eyepiece lens) picks up that image and magnifies it. 

    Magnification Rating

    Most binoculars are designed to magnify an object six to 12 times. Binoculars are rated by the magnification they produce and the diameter of the objective lens. For example, a 6x30 binocular magnifies distant objects six times and have objective lenses 30mm in diameter. The larger the objective lens, the greater its ability to gather light, and the clearer distant objects will be.

    For the best selection of binoculars in NYC, come to Camera Land. In addition to our unbeatable selection of digital cameras and camera accessories, we carry binoculars and optic accessories from the leading brands, including Bushnell, Brunton, Nikon, Zeiss, and Zen-Ray. Visit our website to browse our binocular inventory online, or call us at (646) 789-4830 to speak with one of our binocular experts. 

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