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Spotting scope eyepieces are usually interchangeable to adapt for different magnifications, or may have variable zoom to give a range of magnifications. Magnifications less than 20× are unusual, as are magnifications more than 60× since the latter can lead to poorer image brightness, a narrow field of view and too much image shaking, even on ...
Bushnell Corporation is an American firm that specializes in sporting optics and outdoor products. It is based in Overland Park, Kansas and is a wholly-owned subsidiary of Vista Outdoor . Bushnell makes binoculars , telescopes , spotting scopes , riflescopes , red dot sights , GPS devices , laser rangefinders , game cameras , night-vision ...
David Pearsall Bushnell (1913–2005) was an American entrepreneur who founded the Bushnell optics company in 1948. Bushnell made precision binoculars affordable to middle-class Americans for the first time through a strategy of importing from manufacturers who provided optics to his patented specifications.
Three people birdwatching with binoculars. Birdwatching, or birding, is the observing of birds, either as a recreational activity or as a form of citizen science.A birdwatcher may observe by using their naked eye, by using a visual enhancement device such as binoculars or a telescope, by listening for bird sounds, [1] [2] watching public webcams, or by viewing smart bird feeder cameras.
Currie was born and raised in Cape Town, South Africa. [1] His parents owned and ran the restaurant at Kirstenbosch Botanical Gardens on Table Mountain. [2] Currie started birdwatching around the age of seven, [1] becoming enamored of the power and beauty of birds after witnessing a black eagle swoop down and grab a rock hyrax right in front of him. [3]
The first World Series of Birding was held on May 19, 1984, and the winning team included Dunne, David Sibley (author of the renowned The Sibley Guide to Birds), the late Pete Bacinski (former director of NJ Audubon's Owl Haven Nature Center and Sandy Hook Bird Observatory), Bill Boyle (author of A Guide to Bird Finding in New Jersey), and the ...