First thing to consider when looking at Binoculars is how we are going to use them. Binoculars are two mirror-symmetrical and identical telescopes mounted side-by-side and aligned to point accurately in the same direction, permitting two-eye viewing.
A telescope is an instrument that makes it possible to look at stars and the planets from the comfort of your own home. Binoculars are just more comfortable to look through and hold steady because both hands are usually used. When hiking or orienteering, binoculars will be very useful, but it is important to note that optics are very fragile, and so plastic lenses over glass ones, and a rugged case are probably going to be more important than high power, or the ability to use them at night.
An ounce of prevention is worth a pound of repair. There are giant binoculars available with higher magnifications and apertures which are designed for astronomy use but you will certainly need a sturdy tripod or mount to use them. Since the advent of the original coating, the technique has been refined, and there are several grades of lens coating available.
Some binoculars are designed with a roof prism to make the best use of natural lighting. Telescopes from department stores are ones which try to sell themselves on magnification. Some binoculars come with special fire coating on the lenses.
Binoculars are easy to operate and allow viewers to concentrate fully on looking up into the sky. When you travel, bring your binoculars, they will not add measurable weight to your luggage.
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