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How Birding Binoculars and Spotting Scopes Work
Home » Birding » Birding Binoculars and Spotting Scopes » How Birding Binoculars and Spotting Scopes WorkBirding binoculars and spotting scopes work in essentially the same way to bring you a magnified picture of an object located at a far away distance. Understanding how these instruments work can help you better comprehend what makes a good set of binoculars or scope.
A working telescope functions basically in the same way as holding a magnifying glass up to the light to view an object on the other side. To enlarge that object even further, simply examine it through an additional magnifying glass. You will see that the image is brighter and clearer than before. The magnifying glass closest to the object you are viewing works as the optical lens of a telescope. The one nearest your eye works as the eyepiece of the telescope. There is a third element used in binoculars and scopes that flips the object upright, known as an erecting prism. If looking at stars, it would be okay to view the image backward and upside down, but for looking at birds, you will need a device that flips the image upright. This prism is simply a piece of glass that functions like a mirror.
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