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  2. List of Leica lenses - Wikipedia

    en.wikipedia.org/wiki/List_of_Leica_lenses

    Leica 60 mm Macro-Elmarit-R 1st version – 1972 – outside bayonet lens hood fitting; Leica 60 mm Macro-Elmarit-R dn2 version; Leica 75 mm f /2.0 Elcan-R code C-341 – extremely rare; Leica 80mm f /1.4 Summilux-R; Elmarit-R 135 mm. Leica 90 mm f /2.8 Elmarit-R 1st version – 1964–1996; Leica 90 mm f /2.8 Elmarit-R 2nd version – 1983

  3. List of Leica Camera models - Wikipedia

    en.wikipedia.org/wiki/List_of_Leica_Camera_models

    Followed by Leica Luxur and Leica Compur (a total of 60,586 of the Leica I, Luxur, and Compur models were made). Interchangeable lenses for these were introduced in 1930. Leica Standard: 1932. The first Leica camera was designed with a film-to-lens flange distance of 28.8 millimeters. Leica II: 1932. The first Leica camera with a rangefinder.

  4. Walter Mandler - Wikipedia

    en.wikipedia.org/wiki/Walter_Mandler

    Mandler is credited with the design of more than 45 high performance Leica lenses for the Leica rangefinder cameras and Leica SLR cameras, including many landmark designs: Ernst Leitz Canada Elmarit-R 19 mm/2.8 Leica Summicron 50 mm/2 Leica Macro-Elmarit-R 60 mm/2.8 Leica Summicron-R 90 mm/2 Leica Elmarit-R 90 mm/2.8 Apo-Telyt-R 180 mm/3.4 ...

  5. Nocticron - Wikipedia

    en.wikipedia.org/wiki/Nocticron

    Nocticron („Night-time“ from latin nox, noctis „night“ and ancient Greek kronos „time“ [1]) is the brand name of Leica lenses with an extreme speed of f/1.2. Because of the large aperture size and its image stabilisation system it is possible to take images with relatively short exposure time especially in available light situations.

  6. Lenses for SLR and DSLR cameras - Wikipedia

    en.wikipedia.org/wiki/Lenses_for_SLR_and_DSLR...

    Zoom lenses are often described by the ratio of their longest to shortest focal lengths. For example, a zoom lens with focal lengths ranging from 100 mm to 400 mm may be described as a 4:1 or "4×" zoom. Typical zoom lenses cover a 3.5× range, for example 24–90 mm (standard zoom) or 60–200 mm (telephoto zoom).

  7. History of photographic lens design - Wikipedia

    en.wikipedia.org/wiki/History_of_photographic...

    However, for the record: the first autofocus lens for a still camera was the Konishiroku Konica Hexanon 38mm f/2.8 [171] built into the Konica C35 AF (1977, Japan) 35mm point-and-shoot; the first autofocus lens for an SLR camera was the unnamed 116mm f/8 [172] built into the Polaroid SX-70 Sonar (1978, USA) instant film SLR; the first ...

  8. Hektor (lens) - Wikipedia

    en.wikipedia.org/wiki/Hektor_(lens)

    The Hektor is a photographic lens design manufactured by Leica Camera. [1] The first "fast" lens available for the Leica I(A) was the Hektor 50mm f/2,5. Later, the design was adapted for use as a long portrait lens, available first in a 73mm f/1.9 and 135mm f/4,5 screw-mount version and later in a 125mm f/2,5 bayonet-mount version.

  9. Photographic lens design - Wikipedia

    en.wikipedia.org/wiki/Photographic_lens_design

    For all these reasons, the optical performance of zoom lenses tends to be lower than fixed-focal-length lenses. Normal lens - a lens with a focal length about equal to the diagonal size of the film or sensor format, or that reproduces perspective that generally looks "normal" to a human observer. Cross-section of a typical short-focus wide ...