Major SLR and RF innovations of the 20th century


Year Product World’s first Mount
1932 Leica II and Contax I 35mm rangefinder cameras with M39 screw mount. M39
1936 Kine Exakta 35mm SLR camera. Exakta
1941 Kodak Ektar Line of single-coated lenses. Proprietary
1948 Rectaflex A.1000 35mm SLR camera with pentaprism used in the viewfinder. Proprietary
1948 Duflex 35mm SLR camera with external automatic aperture stop-down and instant-return mirror. Proprietary
1949 Contax S and Praktica 35mm SLR cameras with M42 screw mount. M42
1949 Contax S German 35mm SLR camera with pentaprism used in the viewfinder. M42
1950 Exakta Varex 35mm SLR camera with interchangeable viewfinder and interchangeable focusing screens. Exakta
1950 P. Angenieux 35mm F/2.5 R1 Retrofocus wide-angle lens. Popular MF mounts
1953 Contax E 35mm SLR camera with built-in light meter. M42
1955 Kilfitt Makro-Kilar 4cm f/3.5 Macro lens to provide continuous focusing from infinity to 1:2 (model E) or 1:1 (model D). Popular MF mounts
1956 Praktica FX 2 35mm SLR camera with internal automatic aperture stop-down but without instant-return mirror. M42
1956 Chiyoko Rokkor Line of multi-coated lenses. M39
1958 Zunow 35mm SLR camera with internal automatic aperture stop-down and instant-return mirror. Proprietary
1959 Voigtlander-Zoomar 36-82mm F/2.8 Zoom lens. Popular MF mounts
1961 PC-Nikkor 35mm F/3.5 Perspective control lens. Nikon F
1962 Fisheye-Nikkor 8mm F/8 Fisheye lens. Nikon F
1962 Fish-eye-Takumar 18mm F/11 Full-frame (diagonal) fisheye lens. M42
1963 Topcon RE Super 35mm SLR camera with through-the-lens (TTL) metering system. Topcon
1966 Leitz Wetzlar Noctilux 50mm F/1.2 Lens for 35mm rangefinder cameras to feature an aspherical element. Leica M
1967 Nikkor-N 24mm F/2.8 Lens to feature a floating element system. Nikon F
1968 OP-Fisheye-Nikkor 10mm F/5.6 OP Lens for 35mm SLR cameras to feature an aspherical element. Nikon F
1969 Praktica LLC 35mm SLR camera with electromechanical aperture stop-down. M42
1971 Asahi Pentax ES 35mm SLR camera with TTL automatic-exposure control. M42
1971 Canon FD 55mm F/1.2 AL Lens for 35mm SLR cameras for use without a mirror-lock mechanism to feature an aspherical element. Canon FD
1975 Leitz Canada APO-Telyt-R 180mm F/3.4 Apochromatic lens. Leica R
1981 Sigma 21-35mm F/3.5-4 Ultra-wide angle zoom lens. Popular MF mounts
1985 Kino Precision Kiron 28-210mm F/4-5.6 Superzoom lens. Popular MF mounts
1985 Minolta A Line of interchangeable AF lenses. Minolta A
1987 Canon EF Fully-electronic mount for 35mm SLR cameras. Canon EF
1995 Canon EF 75-300mm F/4-5.6 IS USM Interchangeable lens with built-in image stabilization. Canon EF
1999 Nikon D1 Digital SLR camera developed by a major camera manufacturer. Nikon F

NOTE: only serially-produced consumer photographic products for 35mm cameras with interchangeable lenses are listed.

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