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All necessary information about binoculars

All necessary information about microscopes: magnification, field of view, observed objects and much more

This useful article includes some of the most frequently asked questions about telescopes and astronomy

This article is devoted to the evolution of the binoculars' optical schemes

All about choosing binoculars: numbers, field of view, exit pupil, prisms, lens coating, focus

Useful information on how to choose binoculars that best fit your needs and how to take proper care of them