Difference between revisions of "Contax/Yashica lenses"

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The Yashica / Contax lens mount was introduced in 1975 simultaneously on the [[Contax RTS]] and on the [[Yashica FX-1]]. From the beginning there was a [[Yashica]] range of lenses, called Yashica ML when multi-coated and DSB when single-coated, and a [[Carl Zeiss|Zeiss]] AE lens range, which displayed the T* for Zeiss' proprietary multi-coating. Some [[Carl Zeiss]] lenses were made in Germany and the rest in Japan under Zeiss license.
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The Yashica / Contax lens mount was introduced in 1975 simultaneously on the [[Contax RTS]] and on the [[Yashica FX-1]]. From the beginning there was a [[Yashica]] range of lenses, called Yashica ML when multi-coated and DSB when single-coated, and a [[Carl Zeiss|Zeiss]] AE lens range, which also displayed the T* for Zeiss' renowned, proprietary multi-coating. Some [[Carl Zeiss]] lenses were made in Germany and the rest in Japan under Zeiss license.
  
 
In 1983, [[Kyocera]] acquired Yashica, and continued to manufacture Yashica ML and Carl Zeiss AE/MM lenses under license.
 
In 1983, [[Kyocera]] acquired Yashica, and continued to manufacture Yashica ML and Carl Zeiss AE/MM lenses under license.
  
The C/Y mount was modified in 1985 with new Contax 'MM' lenses permitting to use the program and shutter-priority modes of the [[Contax 159MM]] and subsequent bodies. The new MM lenses are distinguished visually by the color of the [[f-stop]] markers: the highest f-stop on the MM lenses is marked in green. On the older lenses, also called AE lenses, it is marked in white. The lenses are physically compatible but with the older lenses you cannot use the exposure meter of the newer bodies to its full potential.  Unfortunately, the program mode of later manual focus Yashica (Kyocera) bodies (FX-103, 107/108/109MP) do not have full MM compatibility.
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The C/Y mount was modified in 1985 with new Zeiss 'MM' design lenses, which permitted the use of program and shutter-priority on the [[Contax 159MM]] and subsequent bodies. The new MM lenses are distinguished visually by the color of the [[f-stop]] markers: the highest f-stop on the MM lenses is marked in green. On the older lenses, also called AE lenses, it is marked in white. The lenses are physically compatible but with the older lenses you cannot use the exposure meter of the newer bodies to its full potential.  Unfortunately, the program mode of later manual focus Yashica (Kyocera) bodies (FX-103, 107/108/109MP) do not have full MM compatibility.
  
 
One of the more interesting adaption of the Zeiss AE/MM lenses is to the [[Contax AX]] camera, built by Kyocera.  This camera allows autofocus of the manual-focus Zeiss lenses, by actually moving the film plane (rather than the lens) back and forth. The AX can also be used with other lens mounts, via adapters.
 
One of the more interesting adaption of the Zeiss AE/MM lenses is to the [[Contax AX]] camera, built by Kyocera.  This camera allows autofocus of the manual-focus Zeiss lenses, by actually moving the film plane (rather than the lens) back and forth. The AX can also be used with other lens mounts, via adapters.

Revision as of 23:54, 23 May 2006

The Yashica / Contax lens mount was introduced in 1975 simultaneously on the Contax RTS and on the Yashica FX-1. From the beginning there was a Yashica range of lenses, called Yashica ML when multi-coated and DSB when single-coated, and a Zeiss AE lens range, which also displayed the T* for Zeiss' renowned, proprietary multi-coating. Some Carl Zeiss lenses were made in Germany and the rest in Japan under Zeiss license.

In 1983, Kyocera acquired Yashica, and continued to manufacture Yashica ML and Carl Zeiss AE/MM lenses under license.

The C/Y mount was modified in 1985 with new Zeiss 'MM' design lenses, which permitted the use of program and shutter-priority on the Contax 159MM and subsequent bodies. The new MM lenses are distinguished visually by the color of the f-stop markers: the highest f-stop on the MM lenses is marked in green. On the older lenses, also called AE lenses, it is marked in white. The lenses are physically compatible but with the older lenses you cannot use the exposure meter of the newer bodies to its full potential. Unfortunately, the program mode of later manual focus Yashica (Kyocera) bodies (FX-103, 107/108/109MP) do not have full MM compatibility.

One of the more interesting adaption of the Zeiss AE/MM lenses is to the Contax AX camera, built by Kyocera. This camera allows autofocus of the manual-focus Zeiss lenses, by actually moving the film plane (rather than the lens) back and forth. The AX can also be used with other lens mounts, via adapters.

Later Contax SLR lenses for the auto-focus Contax N series built by Kyocera use a different mount, aptly called "N mount."

While every brand has its adherents, optical testing has generally shown that Zeiss AE/MM lenses were among the sharpest ever made for a production 35mm SLR. Adapters to use Zeiss T* AE/MM lenses on other cameras, most notably Canon EOS, have proved popular.

Yashica ML multi-coated lenses for the C/Y bayonet mount, while not to the standard of Zeiss, have also earned a reputation for high quality. Yashica already had a reputation for fine optics dating from the early 1960s with its optics supplier (later subsidiary), Tomioka Optical, and is also believed to have benefited from its licensing and manufacturing relationship with Carl Zeiss.