Roland's October 1981 Sky & Telescope article: "An Apochromatic Triplet Objective"


James Stone
 

At long last, Sky & Telescope has granted permission for this article to be posted to the Astro-Physics user group. Permission is limited to this user group only. This copy of the article should not be redistributed and is for private use only. Hope the community enjoys reading this as much as I did.
Best,
James

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