a folding pair of small telescopes with an eyepiece for each eye.
a device that makes distant objects look larger and closer Viewing the bird through the binoculars let us identify it as a yellow warbler.
Optical devices used to magnify birds. Binoculars, or "binocs", are essential for any birdwatcher. The two main types are porro prism and roof prism.
an optical instrument designed for simultaneous use by both eyes
Binocular telescopes, or binoculars, (also known as field glasses) are two identical or mirror-symmetrical telescopes mounted side-by-side and aligned to point accurately in the same direction, allowing the viewer to use both eyes (Binocular vision) when viewing distant objects. ...
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