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  Category:Anastigmat – Wikimedia Commons

  https://commons.wikimedia.org/wiki/Category:Anastigmat?uselang=de

  Keine Beschreibung vorhanden.

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  Applied Optics and Optical Design, Part Two - A. E. Conrady - Google Books

  https://books.google.de/books?id=-kJ-GDnmxsAC&pg=PA800&dq=Pantoskop+anastigmat&hl=de&sa=X&ved=0ahUKEwiK_Z_qmvrfAhUFPFAKHbbgD28Q6

  "For the optical engineer it is an indispensable work." — Journal, Optical Society of America"As a practical guide this book has no rival." — Transactions, Optical Society"A noteworthy contribution," — Nature (London)This…

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