Catalog entry revision

British Ross-Wide-Angle formula (see picture), 6 elements in 4 groups, the outside element pairings are cemented. Released in mid-30's, the FED 28mm f/4,5 closely matched the outer forms of a Leitz Elmar 35mm f/3,5, but it's deluxe optical formula was really advanced against the famous German competitors, Leitz Hektor and Zeiss Jena Tessar. What turns this lens a really admirable Soviet realization is the fact they have minimal total dimensions of the optical parts: the frontal disc of the lens has a diameter of approximately 7mm (analogous dimensions also have the other elements), while the thickness of the third, the most thin of the group, does not exceed the 6-7 tenths of millimeter: you can imagine the difficulties met in the grinding and the assembly of each of these elements, maintaining a reasonable precision. The photos illustrating this rare objective have been realized purposely by Dr. Milos Paul Mladek, beloved friend who kindly offered to divulgation and we give our thanks of heart for the contribution. Mario Cavina In the last photo we see a FED B in a complete vintage outfit with normal f2 50mm; f3,5 50mm macro; f 5.6 100mm; f6.3 100mm; and f4,5 28mm; wide angle sport finder, telephoto finder, angular finder, self timer and lens caps