Walter Watz: Difference between revisions
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The [[35mm f/1.4 Aspherical Summilux-M]] " . . . in its two versions designed by '''Walter Watz''' ( the first one produced between 1990-1994 with 9 elements in five groups and two aspherically ground lenses and the second one produced from 1994 featuring the same optical formula but only one aspherical surface produced by ultra high precision press forming rather than by grinding and polishing, i.e, moulding raw glass blanks for the first time) . . ." | The [[35mm f/1.4 Aspherical Summilux-M]] " . . . in its two versions designed by '''Walter Watz''' ( the first one produced between 1990-1994 with 9 elements in five groups and two aspherically ground lenses and the second one produced from 1994 featuring the same optical formula but only one aspherical surface produced by ultra high precision press forming rather than by grinding and polishing, i.e, moulding raw glass blanks for the first time) . . ." | ||
'''Source''' - [http://elrectanguloenlamano.blogspot.com/2008_06_01_archive.html José Manuel Serrano Esparza] | '''Source''' - [http://elrectanguloenlamano.blogspot.com/2008_06_01_archive.html José Manuel Serrano Esparza] | ||
=== Leica Camera GmbH Photographic Patents by Rolf Crema of Ehringshausen, Germany === | |||
*1991 FEB 15 - CAMERA LENS (9 / 5) see above | |||
Revision as of 21:07, 8 March 2012
The 35mm f/1.4 Aspherical Summilux-M " . . . in its two versions designed by Walter Watz ( the first one produced between 1990-1994 with 9 elements in five groups and two aspherically ground lenses and the second one produced from 1994 featuring the same optical formula but only one aspherical surface produced by ultra high precision press forming rather than by grinding and polishing, i.e, moulding raw glass blanks for the first time) . . ."
Source - José Manuel Serrano Esparza
Leica Camera GmbH Photographic Patents by Rolf Crema of Ehringshausen, Germany
- 1991 FEB 15 - CAMERA LENS (9 / 5) see above
