Tele-Xenar versus Tele-Arton 250 and 270

[Paul Schilliger]

Thanks again, Henry.

If someone has it, I would be interested in knowing if the Tele-Xenar 270 f:5,5 differs from it's Tele-Arton counterpart. Apart from the design with one more element for the Tele-Arton, would the coverage and the flange to film distance be the same? The numbers for the Tele-Arton 270 are 152mm ff and 178mm image circle. Unfortunately Schneider has no information for Tele-Xenars shorter than 360mm.

[Paul Schilliger]

One more detail: I have seen some recent multicoated Tele-Artons 270 5,5. They are probably not the same design as the older ones, are they? I would supect that they require a longer extension, just as the recent 250mm.

[Ole Tjugen]

There are data for some older lenses available on Schneider Kreuznach's page - see www.schneiderkreuznach.com/archiv/archiv.htm. Some of them are available in English, some are German only. You'll find other Tele-Xenars there.

[Ted987]

I have a Tele-Xenar 5,5/270 coated (red triangle, single-coated), made in 1951. It's 480g mounted in a Technika board. Filter size is 58mm. FFD is 162mm (not a typo). Mine is in a Compur #2 dial-set shutter, with a min aperture of f/57. Image circles at infinity (full pupil) are: f/5.5-f/16= vignettes; f/16= 154mm; f/22= 170mm; f/32= 184mm; f/45= 191mm; f/57= 194mm. Full cut-off of pupil occurs at 215mm -- it's a 4x5 lens with very little movements. Sharp all across the image area.