Used Binoculars
When looking at binocular specifications we usually pay most attention to the two numbers that define the basic specs. The first number gives us the magnification factor, so an 8x binocular magnifies an image (brings it closer) by 8 times. The higher the magnification the more difficult it becomes to use the binoculars effectively due to the natural hand-shake effect, making it difficult to keep the bird in view and also the smaller the field of view will be. For birding use, an 8x binocular is the most commonly used though in some circumstances enthusiasts will use higher magnification.
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