Guide to buying binoculars from the National Audubon Society.

Collection of articles from the magazine on all aspects of buying binoculars and spotting scopes.

Articles by Michael and Diane Porter on how to choose and use them, comparison charts of top brands, and how they work.

Information about birding with Tele Vue telescopes, with telescope and accessory selection guides, specifications, reviews, usage notes, and dealer list.

Sells binoculars, scopes, and tripods. Includes reviews, articles on optics basics and a buying guide.

Comparison of popular binoculars and telescopes used by birders, with recommendations.