David Nagler Eyepieces Video Interview
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David Nagler was a guest on Deep Astronomy channel's "Telescope Talk Hangout" show withhost Tony Darnell. In this hour-long show he discusses how eyepieces work, eye-relief, real field, apparent field, magnification, exit pupil, seeing, personal factors that impact eyepiece choice, Nagler eyepiece evolution, Tele Vue quality control and more.
Screen capture of Da...
Screen capture of David from the show.

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