All About Optics

Advice about selecting optics for birding and reviews of binoculars and spotting scopes. Sponsored by Eagle Optics.

BirdScope

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

Eagle Optics

Resource for Binoculars and Spotting Scopes for Birding, Hunting, Nature, Sports, and Outdoor Recreation. See Complete Online Binocular Catalog and Buying Guide.

Optics4birding

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