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View Full Version : protar zeiss 1:9 F82 lens can be used for 4x5 format ?



captli7
28-Feb-2018, 06:14
I bought a E.krauss Paris Protar-zeiss 1:9 F82 lens, someone said it cannot be used for 4x5 format, only 6x9? how much the lens image covered?

Dan Fromm
28-Feb-2018, 07:05
It should cover 90 degrees -- 164 mm -- "at small apertures." Try it out.

captli7
28-Feb-2018, 19:36
It should cover 90 degrees -- 164 mm -- "at small apertures." Try it out.

thanks.

Steven Tribe
1-Mar-2018, 02:01
If it is the series IIIa made from after 1892, then the Voigtlander version was given as being a 97 degree wide-angle!

jesse
1-Mar-2018, 06:51
Based on the chart below, estimating 82mm f9 image circle is just above 16cm diameter
https://farm5.staticflickr.com/4704/26683725798_221a6c007c_b.jpg