M2640mm1930sFull frameGermanyCarl Zeiss Jena24x24mmf/2
C mount40mm1920sAPS-CGermanyCarl ZeissNormalStandardCinef/3.5
AR mount40mm1980sFull frameJapanKonicaStandardNormalWide-anglef/1.8
M42 mount40mm1950sFull frameWest GermanyLiechtensteinHeinz KilfittMacrof/2.8