Compact binoculars are some of the handiest and most widespread of all optical instruments. Bird watching binoculars are one of the critical pieces of equipment bird watchers carry.
The best binoculars for astronomy use are 7 x 50 or larger. The small binoculars are available for general use. All light transmitting surfaces are covered with multi-coating to increase brightness.
The coating reduces glare and protects your eyes from UV rays, and increases the definition and clarity of an object. Generally, if the objective lens is 50 mm then it is considered to be a large binocular; if it is 42 mm, it is full size; if it is 32 mm, it is a mid size. Monoculars meant as a toy for children have magnifications of only three or four times and they are very cheap.
You can see so much detail in the craters, one which you can not see by plainly looking at the moon with the naked eye. They can be extended or retracted as needed. It is possible to get a nice pair of binoculars for a couple of hundred dollars so it is important to stick to your budget as it is equally possible to fall in love with a pair that cost a couple of thousand dollars.
Despite all of your preventive measures, there will come a time when your binoculars are damaged. There is no such thing as one-size-fits-all when it comes to sporting optics.
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