People from all age groups buy binoculars. Young or old all would agree that it is impossible to bird watch with out a pair of binoculars.
The power of the optics is expressed as two numbers, such as 7 x 35. The bashability of binoculars refers to how tough they are. 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.
When night-vision binoculars first came on the market they were very expensive status symbols. Folding in the eyepiece between observations will protect the eyepiece against scratches or other inadvertent damage. Phase correction is a coating on the lenses that increases the sharpness, contrast and color saturation.
Waterproof construction eliminates potential damage due to wet conditions. When buying a telescope, look at your aspirations for owning a telescope, and what you want to get out of the telescope. Some have special fire coating employs advanced technology that is designed to eliminate both infrared light and ultraviolet rays.
There is no such thing as one-size-fits-all when it comes to sporting optics. And don't forget about small children and their fascination with dropping electronic equipment in toilets.
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