As it is with binoculars, so it is with scopes. Essentially, all binoculars and scopes are derived from classical telescopes, which consist, in their most basic fashion, of two lenses.
As an experienced wildlife photographer my top priority was optical quality, and I did alot of research before deciding on this pair. You'll need to choose the objective diameter for your binoculars. If you are a backpacker or will be doing your birding on a bicycle, then you may wish to consider mid size or even compact binoculars.
As with the aperture of a camera lens, the size of objective lens determines the amount of light that can enter your binoculars. You can find binoculars in prices ranging from ten dollars to one thousand dollars. The best result is achieved when multiple layers of coatings are applied, to the front and rear of the lens.
This may sound obvious, but you need to buy binoculars that are comfortable. Another way to save is to look for binoculars online.
hubble space telescope - just like the ones that dad and his friends used to have
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