Young or old all would agree that it is impossible to bird watch with out a pair of binoculars. Binoculars are used for a lot of things.
While cleaning your binoculars, you should take care to see that no cleaning mark or scratch is left on the surface of the lens. Compact binoculars are generally guarded with rubber padding, and they come with a case and hanging strip. The binocular rating has two basic parameters, magnification and aperture.
When night-vision binoculars first came on the market they were very expensive status symbols. The first number gives the power of the magnification and the second number tells the diameter of the objective lens in millimeters which measures its light gathering strength. Modern lightweight binoculars have also evolved in terms of the use of roof prisms, rather than the traditional Porro prisms.
Using your binoculars outdoors will usually subject them to moisture. Hunter's binoculars are now being designed with range finders and birdwatchers are seeing more of the increasing stabilization features they need in the latest birdwatching binoculars.