;1967: Zeiss Ikon Contaflex 126 (West Germany): first Kodapak Instamatic 126 cartridge film SLR. Was a Voigtländer focal-plane shutter design unrelated to 35 mm Contaflexes (see above), accepting fully interchangeable lenses."Modern Photography's Annual Guide to 47 Top Cameras: Zeiss Ikon Contaflex 126," p. 113. Modern Photography, Volume 33, Number 12; December 1969. David Francis, "Contaflex 126," retrieved 10 March 2008Small and Barringer, pp. 58–60 Took up to twenty exposures of 28×28 mm frames on paper-backed, singly perforated, 35 mm wide film pre-threaded into double-ended cartridge with film supply and take-up spools.Goldberg, Camera Technology. pp. 172–173Herbert Keppler, "New 35mm Film Format: Bogeyman Or Blessing? Kodak's teamed up with four Japanese companies for a new 35mm film system. Will it blow your present camera and lenses into the weeds of photo history?" pp. 46–49. Popular Photography, Volume 57 Number 11; November 1993. Drop-in loading 126 film was introduced by Kodak in 1963, solving the problem of amateurs' difficulty in loading 135 film manually. The 126 cartridge was an extremely popular non-SLR snapshot format for more than a decade, but began to fall victim to the increasing popularity of the 110 format throughout the 1970's.Eaton S. Lothrop, Jr., "Time Exposure: Eastman Kodak marks 25 years of foolproof film loading," p. 14. Popular Photography, Volume 95 Number 2; February 1988. Schneider, Keppler and Lothrop, pp. 58–61Wade, Short History. p. 117
