Optics4Birding is your one-stop source for quality binoculars, spotting scopes, and related products. Our site features comprehensive binocular reviews, spotting scope reviews and other product reviews. Informative sections tell you how to choose binoculars, how binoculars and spotting scopes work, about digiscoping, caring for your optics, about night vision and much more. Located in Irvine, CA.