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Create the page "Achromatic refractor" on this wiki! See also the search results found.

• Main Topic Index
  **[[Refractor Telescope]] ***[[Achromatic Refractor]]
  2 KB (176 words) - 09:58, 12 June 2019
• Focal Ratio
  ...r to minimize the effects of chromatic aberration, while an [[apochromatic refractor]] can get away with shorter focal ratios since it uses special glass that d
  7 KB (1,162 words) - 17:38, 20 May 2019