Difference between revisions of "Ultron"

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(added mention of other lenses that used similar formulas)
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The original  "Ultron" was a 50mm f/2.0 lens with 6 elements in 5 groups designed for the Voigtlander [[Prominent]] camera.  It was designed by A.W. Tronnier as an improvement on his own Schemider-Kreuznach Xenon (c.a. 1937) design.
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The original  "Ultron" was a 50mm f/2.0 lens with 6 elements in 5 groups designed for the Voigtlander [[Prominent]] camera and introduced ca 1950.  It was designed by A.W. Tronnier as an improvement on his own Schemider-Kreuznach Xenon (c.a. 1937) design.
 
Ultron lenses were also used in the [[Vitessa]] cameras, Vito III, Vitomatic and others as a high end option over the Skopar.
 
Ultron lenses were also used in the [[Vitessa]] cameras, Vito III, Vitomatic and others as a high end option over the Skopar.
<!---The original design of the Ultron (6/5) was also used for fast lenses such as [[Takumar]] 55/1.8, .--->
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When Zeiss took over Voigtlander a further design improvement by Tronnier resulted in the Ultron 50mm f/1.8 used in the [[Icarex]] camera and also available in M42 mount.  This lens had an extra concave front element making it a 7 elements in 6 groups lens  <ref>[https://www.klassik-cameras.de/Biotar.html Early fast lenses] at www.klassik-cameras.de by Frank Mechelhoff</ref>
 
When Zeiss took over Voigtlander a further design improvement by Tronnier resulted in the Ultron 50mm f/1.8 used in the [[Icarex]] camera and also available in M42 mount.  This lens had an extra concave front element making it a 7 elements in 6 groups lens  <ref>[https://www.klassik-cameras.de/Biotar.html Early fast lenses] at www.klassik-cameras.de by Frank Mechelhoff</ref>
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*40mm f/2.0 Aspherical lens, a 6 element in 5 groups lens for SLRs.
 
*40mm f/2.0 Aspherical lens, a 6 element in 5 groups lens for SLRs.
 
*35mm f/2.0, 35mm f/1.7, 28mm f/2.8 and Macro Ultron 35mm 1:2  for rangefinders and mirrorless cameras
 
*35mm f/2.0, 35mm f/1.7, 28mm f/2.8 and Macro Ultron 35mm 1:2  for rangefinders and mirrorless cameras
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==Other makers==
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Other makers adopted lens formulas similar to the Ultron for their fast 50s, such as:
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*[[Takumar]] 55/1.8 (6 elements 5 groups)
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*[[Nikon|Nikkor]]  50/1.8 (6 elements 5 groups)
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==Notes==
 
==Notes==

Revision as of 20:17, 17 January 2023

Ultron is the name of a lens designed by Voigtlander, and later Zeiss. The name is used by the Cosina Voigtlander lenses currently.

The original "Ultron" was a 50mm f/2.0 lens with 6 elements in 5 groups designed for the Voigtlander Prominent camera and introduced ca 1950. It was designed by A.W. Tronnier as an improvement on his own Schemider-Kreuznach Xenon (c.a. 1937) design. Ultron lenses were also used in the Vitessa cameras, Vito III, Vitomatic and others as a high end option over the Skopar.


When Zeiss took over Voigtlander a further design improvement by Tronnier resulted in the Ultron 50mm f/1.8 used in the Icarex camera and also available in M42 mount. This lens had an extra concave front element making it a 7 elements in 6 groups lens [1]


Cosina Voigtlander

The name Ultron was reused in the early 2000 by Cosina Voigtlander[2]

  • 40mm f/2.0 Aspherical lens, a 6 element in 5 groups lens for SLRs.
  • 35mm f/2.0, 35mm f/1.7, 28mm f/2.8 and Macro Ultron 35mm 1:2 for rangefinders and mirrorless cameras

Other makers

Other makers adopted lens formulas similar to the Ultron for their fast 50s, such as:

  • Takumar 55/1.8 (6 elements 5 groups)
  • Nikkor 50/1.8 (6 elements 5 groups)


Notes

  1. Early fast lenses at www.klassik-cameras.de by Frank Mechelhoff
  2. Cosina Voigtlander official page

Links