Avid bird watching enthusiasts often look like pack mules hiking to a gold rush in the west. Unlike monoculars which is one small telescope and can only been seen through using one eye, binoculars is lke having two telescopes, one for each eye.
Consequently, spotting scopes are not only for the elite, but are becoming both essential and accessible equipment for the avid birder. Perhaps you are planning a sight-seeing trip to some exotic location. If it just for the kids to play, then go with a less expensive model that they will not break easily.
A simple coating was devised to prevent this, by allowing more light to pass through the lens, and less to be reflected back. 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. Field-of-view is determined by magnification and the focal lengths of the objective and eyepiece lenses.
There are fine and intricate layers of chemical coatings on the surfaces of binoculars lens. My personal experience has revealed binoculars in the two to five hundred dollar range perform well and I ve never missed a sighting because of their quality. The objects may look bigger, but the images could be quite unclear.
When you travel, bring your binoculars, they will not add measurable weight to your luggage. A night vision monocular is another option
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