Spotting scope

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21	Brief description and possible applications of the Add to Reading List Source URL: www.baader-planetarium.com Language: English - Date: 2013-06-12 06:28:06 Photography Laboratory equipment Lenses Eyepiece Astrophotography Birding Afocal photography T-mount Spotting scope Optics Telescopes Optical devices
22	PDF Document Add to Reading List Source URL: askabiologist.asu.edu Language: English - Date: 2010-03-09 13:09:52 Birding Spotting scope Leisure Birdwatching American Birding Association Astrophotography Digiscoping Cornell Lab of Ornithology Eyepiece Ornithology Telescopes Biology