Binoculars magnify the image of a distant object so that it looks much closer than it actually is. The optics field is quite large and the number of products is considerable.
Kids use binoculars as toys and as learning devices. You may use your binoculars for sporting (watching your favorite team from the stands), hunting (they won't weigh you down or take much space), birdwatching (you can hold them steady for long periods without tiring), or just everyday nature lovers. Many people prefer to carry binoculars around freely, rather than in a case.
You will need a magnification factor of at least 7, maybe up to 10 if you have a steady hand. A simple coating was devised to prevent this, by allowing more light to pass through the lens, and less to be reflected back.
Some binoculars are designed with a roof prism to make the best use of natural lighting. They can be extended or retracted as needed. One fascinating use of binoculars is looking at the night sky.
If you are going to be a birder, you are going to need binoculars. Let's face it, you are going to possess these binoculars for a long time, so get a good pair.
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