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Cutaway diagram of Hologon lens, designed by Erhard Glatzel for Zeiss (from US Pat. 3,661,447) [20] The Contarex Hologon was a fixed-lens camera that used the same stripped-down second-generation chassis as the microscope camera, which removed the reflex mirror and viewfinder mechanisms, featuring mechanically-controlled shutter speeds ranging ...
Icarex is a line of 35mm single lens reflex cameras (SLRs) made by Zeiss Ikon, derived from an earlier Bessaflex project developed by Voigtländer.The Icarex line, which included the Icarex 35, Icarex 35CS, Icarex 35S, and SL 706, was aimed at a mid-range market above the Contaflex SLR, which was intended for advanced amateurs, but below the Contarex line for professionals.
Zeiss also invented the System Camera, with all sorts of near-photo, wide-angle, mirror-house, long-focal-length lenses for specific situations. However Zeiss called it Universalkamera. One of the key design features was a coupled rangefinder with a very long baseline, with its own eyepiece next to that of the viewfinder.
The M42 lens mount is a screw thread mounting standard for attaching lenses to 35 mm cameras, primarily single-lens reflex models. It is more accurately known as the M42 × 1 mm standard, which means that it is a metric screw thread of 42 mm diameter and 1 mm thread pitch.
The lenses designed by Carl Zeiss for the G-series quickly established it as a camera of worth: the original trio of lenses released with the G1 included the 45 mm f / 2 Planar, 28 mm f / 2.8 Biogon, and 90 mm f / 2.8 Sonnar; the 16 mm f / 8 Hologon was announced at the system launch but was not immediately available. [5]
The Contax ll was the impressive Zeiss response to the popularity and demand for the Leica 35mm camera. This demand for high quality 35mm picture making tools was based on portability and the increasing availability of 35mm motion picture film, packaged into spools and marketed to amateur as well as professional photographers.
The first Zeiss Sonnar, patented in 1929, was a f /2.0 50 mm lens with six elements in three groups and released with the Zeiss Contax I rangefinder camera in 1932. In 1931, Bertele reformulated the Sonnar with seven elements in three groups, allowing a maximum aperture of f /1.5 .
The Zeiss Hologon is an ultra wide-angle f=15mm f / 8 triplet lens, providing a 110° angle of view for 35mm format cameras. The Hologon was originally fitted to a dedicated camera, the Zeiss Ikon Contarex Hologon in the late 1960s; as sales of that camera were poor and the Zeiss Ikon company itself was going bankrupt, an additional 225 lenses were made in Leica M mount and released for sale ...