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 : 0.8 inch (plus US$24.95) 1.0 inch (plus US$29.95) 1.4 inch (plus US$44.95) 1.8 inch ENHANCED (plus US$59.95) 2.3 inch (plus US$59.95) 2.7 inch (plus US$79.95) Unit Price: Quantity: