Topical Terminology > Nagler Eyepiece
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Nagler Eyepiece
For Nagler Eyepiece we have a term and definition in Telescope.
Nagler Eyepiece (Telescope) 
A specific eyepiece design. Nagler is a "house brand" of Tele Vue. These eyepieces are noted for a very wide apparent field of view -- 82 degrees -- and for excellent correction at fast focal ratios. Naglers are big, heavy, and expensive, and consist of seven or eight simple lenses grouped together into four singlets or doublets.
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