Eagle Optics - Resource for Binoculars and Spotting Scopes for Birding, Hunting, Nature, Sports, and Outdoor Recreation. See Complete Online Binocular Catalog and Buying Guide. Better View Desired - Birding optics reviews, articles, manufacturers, and retailers. Optics4birding - Sells binoculars, scopes, and tripods. Includes reviews, articles on optics basics and a buying guide. Birding Optics: Binoculars and Scopes - Articles by Michael and Diane Porter on how to choose and use them, comparison charts of top brands, and how they work. 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. WorldTwitch - Binoculars and Spotting Scopes for Birding - Comparison of popular binoculars and telescopes used by birders, with recommendations.