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| − | '''Tenax''' was a model name used by the German company [[Goerz]] at the beginning of the XXth century. | + | {{disambig}} |
| | + | '''Tenax''' was a model name used by the German company [[Goerz]] at the beginning of the 20th century. |
| | + | * the [[Taro Tenax]] ([[Goerz]] 1912) |
| | + | * the [[Plate Tenax]]/Vest-pocket Tenax (Strut-folding; Goerz 1909) |
| | + | * the Stereotenax/Stereo Pocket Tenax (Goerz) |
| | + | * the [[Rollfilm Tenax]] (Goerz 1921) |
| | + | * the [[Tenax (folding)]] (Goerz 1907) |
| | + | ** Manufoc-Tenax |
| | + | ** Autofoc-Tenax |
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| − | After Goerz was absorbed in the [[Zeiss Ikon]] company, the name Tenax was re-used successively for three different camera models.
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| − | == The Tenax II (Zeiss Ikon 580/27) ==
| + | After Goerz was absorbed in the [[Zeiss Ikon]] company, the name Tenax was re-used successively for three different camera models: |
| − | | + | * the [[Tenax II]] ([[Zeiss Ikon]] 580/27, 1938-1941) |
| − | The first one was first named '''Tenax''' in short, and became the '''Tenax II''' when the Tenax I was released. Its Zeiss Ikon code number was 580/27. Launched in 1938, it was a 24x24mm rangefinder camera with a rapid-action advance lever placed around the lens.
| + | * the [[Tenax I]] (Zeiss Ikon 570/27, 1939-1959) |
| − | | + | * the [[Tenax Automatic]] (Zeiss Ikon 1960- ) |
| − | The coupled rangefinder was integrated in the viewfinder. It included a wedge-shaped rotating lens, that was actually attached to the interchangeable lens. This system was much like the one on the [[Super Ikonta]], [[Super Nettel]] or [[Nettax]].
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| − | The shutter, placed behind the lens, was a ''Compur-Rapid'' leaf shutter to 1/400.
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| − | The Tenax II was certainly inspired by the [[Robot]] camera, a small 24x24mm camera with spring-driven motorized film advance, launched in 1934. The format was indeed the same, as well as the emphasis on rapid action shooting. The rangefinder Tenax II was more sophisticated, but it was not commercially as successful, and did not survive the war, unlike the Robot.
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| − | A special version of the Tenax existed for X-ray pictures, called the '''Röntgen-Tenax'''.
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| − | === Tenax II lenses ===
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| − | The lens was interchangeable but only very few wide angle and tele lenses were produced. The very limited range of lenses was the following:
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| − | * Carl Zeiss Jena 4cm f/2 ''Sonnar'' standard lens
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| − | * Carl Zeiss Jena 4cm f/2.8 ''Tessar'' standard lens
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| − | * Carl Zeiss Jena 2.7cm f/4.5 ''Orthometar'' wide-angle lens
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| − | * Carl Zeiss Jena 7.5cm f/4 ''Sonnar'' tele lens
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| − | === Tenax II accessories ===
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| − | * the close-up ''Contameter'' set, in a special version for the Tenax II, with code number 1339. It was sold in a case with a special close-up finder and three close-up lenses matched by three lenses for the finder device. | |
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| − | === Links ===
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| − | * [http://www.pacificrimcamera.com/pp/zeiss/tenax/tenax2.htm The Tenax II at Pacific Rim]
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| − | == The Tenax I (Zeiss Ikon 570/27) ==
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| − | The '''Tenax I''' was actually launched after the Tenax II. As the Tenax II, it was a 24x24mm square-format camera, with a rapid-advance lever around the lens. But it was a much simpler camera, with a completely different body, no rangefinder, a simple folding viewfinder on the top plate, and a behind the lens ''Compur'' shutter to 1/300. Most of them were equipped with a Zeiss ''Novar'' 3.5cm f/3.5 lens. It also existed with a Carl Zeiss Jena 3.5cm f/2.8 ''Tessar''; in limited numbers.
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| − | The production began in 1939, and it was nearly halted in 1941. There was a limited production during the rest of the war.
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| − | After the war, the Eastern Zeiss Ikon company continued the model. At the beginning the shutter was a ''Compur'' to 1/300 or a ''Compur-Rapid'' to 1/500, then it became the East German ''Tempor'' to 1/300. The lens could be the same Zeiss ''Novar'' 35mm f/3.5, or a Carl Zeiss Jena 37.5mm f/3.5 ''Tessar''. The body code number was 111/23 with the Novar and 111/24 with the Tessar.
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| − | The Tenax was modified in 1953 with a fixed viewfinder integrated in a higher top plate with the exposure counter inside it, and a revised advance lever. Soon after it was renamed '''Taxona''', because the Eastern Zeiss Ikon company had lost the rights to use the traditional Zeiss Ikon names, property of the Western Zeiss Ikon company. At the same time, the ''Novar'' name became ''Novonar''. The tip of the advance lever became black in 1954. The production ended in 1959.
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| − | === Links ===
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| − | * [http://www.pacificrimcamera.com/pp/zeiss/tenax/tenax1.htm The Tenax I at Pacific Rim]
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| − | * [http://www.frankfurt--hoechst.de/tenax.htm A web page about the enax I] | |
| − | * [http://www.lumieresenboite.com/collection2.php?l=1&c=Zeiss_Ikon_Tenax The Tenax at lumieresenboite]
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| − | == The Tenax Automatic ==
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| − | In 1960, Zeiss Ikon Stuttgart reused the Tenax name on a small viewfinder camera named '''Tenax Automatic'''. As its name implied, it had an automatic exposure driven by a selenium meter. Its Zeiss code number was 10.0651.
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| − | === Links ===
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| − | * [http://www.pacificrimcamera.com/pp/zeiss/tenax/tenaxa.htm The Tenax Automatic at Pacific Rim]
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| − | {{zeiss classic}}
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| − | [[Category: 35mm rangefinder cameras]]
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| − | [[Category: 24x24mm cameras]]
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| − | [[Category: T cameras]]
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| − | [[Category: Zeiss Ikon cameras]]
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| − | [[Category: German cameras]]
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| − | [[Category: East German cameras]]
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