Magnification/power: A set of technical detail imprinted on any pair of binoculars could be something like this: 8×42, or 10×50 or 10×50.
The first number (8, 10, 12) is the magnification number, the “power” of the binoculars. The object is magnified by 8, 10 or 12 times, which means that it appears to be 8,10 or 12 times closer than seen with the naked eye. So, the higher the magnification, the more detail the viewer is supposed to get. However, there’s more to binoculars than simply looking for the more powerful instrument, as will become clear down below.