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Olivon to Surplus Shed

  • William Paolini
Chapter
Part of the The Patrick Moore Practical Astronomy Series book series (PATRICKMOORE)

Abstract

These use two extra low-dispersion lenses and are parfocal. This eyepiece line is within the following competition class of eyepieces with similar specifications and performance: Astro-Tech Paradigm Dual ED, BST Explorer ED, Orion Epic II ED, Pentax XF, Telescope Service NED “ED” Flat Field.

Keywords

Focal Length Similar Specification Nitrogen Purge Short Focal Length Focal Ratio 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • William Paolini
    • 1
  1. 1.ViennaUSA

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