3 or 5 element lens

greenspun.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 (gunvids@webtv.net), October 26, 1999


That 1941 Riga Minox has a 3 element Minostigmat lens

-- martin tai (martin.tai@capcanada.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 (martin.tai@capcanada.com), October 28, 1999.

Moderation questions? read the FAQ