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Optical Design: Newtonian Reflector
flat-field
The scope is so light that when mounted to my photo tripod and video head
and locks down with thumbscrews
the Etalon filter systems have to be adjusted to the prevailing air pressure at the observation location
Tele Vue 3.5mm Delos Eyepiece - 1.25" - EDL-03.5 14mm Eyepieces Optical Design: Newtonian ReflectorAbout the Tele Vue 3. 5mm Delos Eyepiece 1. 25" Tele Vue is pleased to introduce the TeleVue Delos Eyepiece, a mid to short focal length line of 20mm eye relief, 72 degree apparent field of view eyepieces. Every optical, mechanical, and ergonomic aspect was rethought to achieve reference standard performance for any visual application. The TeleVue Delos Eyepiece was conceived as a narrower field Ethos. Reducing the field to 72 degrees allowed freedom
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