3 or 5 element lensgreenspun.com : LUSENET : Minox Photography : One Thread
Does a Riga Minox serial number 11208 have a three or five element lens? Also any idea what year it wasmaufactured?
-- Gunvids Jansons (firstname.lastname@example.org), October 26, 1999
That 1941 Riga Minox has a 3 element Minostigmat lens
-- martin tai (email@example.com), October 26, 1999.
Riga Minostigmat lens was a 3 element 3 group Cooke Triplet type lens.
Five element lens with a strong negative element field flattener close to the film plane was used in Minox II. The five element COMPLAN with field flattener was a much sharper lens then Minostigmat, but easy to cause scratches by dust particles caught between the flattner lens and the film. Minox III used 4 element COMPLAN lens with slightly curved film plane.
-- martin tai (firstname.lastname@example.org), October 28, 1999.