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8", 6" AND 4.5 " TELESCOPE MIRRORS
 

 

 

Elliptical Diagonal (Secondary) Mirrors
Elliptical diagonal or secondary mirrors used for Newtonian (or Dobsonian) telescopes. These diagonals have the same high quality as our primary mirrors to maximize light transmission and image quality. Most diagonals have a minimum 86 percent reflective coating with SiO overcoat and low expansion glass. Our 1.8, 2.0 and 2.1 sizes have 92% Enhanced Coatings!

Mirrors are measured in inches across the Minor Axis (M.A.) Also used as plano mirrors in optical bench setups. In stock!


Minor Axis :
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