Kodak Aero-Ektar (interchangeably Kodak Anastigmat ) 13.5 inches f/3.5 . My own schematic drawing ; it is of 5 elements in triplet configuration
Kodak Aero-Ektar (interchangeably Kodak Anastigmat ) 13.5 inches f/3.5 . My own schematic drawing ; it is of 5 elements in triplet configuration
Last edited by renditiont; 1-Sep-2017 at 17:44.
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