Tessar type lenses have a reputation of having a very abrupt (steep) transition from sharp to unsharp. This sounds undesirable for landscape - but is it a fact or more of a myth? Or maybe it is more true of some tessar type lenses than of others?
The background for my question: I am looking for a lightweight, high quality 210 mm lens for 6x9. I have avoided the M-Nikkor 8.0/200 because of this Tessar type myth. The 6-element G-Claron still weighs 295 gr and has a coverage that exceeds my needs. Right now, there is a Voigtl?nder Apo Skopar 9.0/210 in a barrel for sale on eBay. So I thought I had found the solution. But Tim from lensn2shutter.com, whom I asked concerning the mounting into a shutter, corrected my belief that this was an Artar/Ronar type lens, he says it is a Tessar type. So my appetite for this lens dropped as steep as the sharpness in a Tessar. What do you think?
By the way, hunting for this lightweight 210, I made some strange "discoveries":
1- While the Internet abounds with quotes of the Apo Lanthar, I found almost no information about the Apo Skopar.
2- The Schneider web site, at www.schneider-kreuznach.de/archiv/archiv.htm, has 2 brochures of Apo Artars, and (only) the one of them, ar_apo_kompl.pdf, lists an Apo Artar 9.0/210 - so this may be the one for me to hunt. (Since there is no Apo Ronar 210, to my knowledge). However - how much weight would I actually save (compared to the G-Claron), since this 210 mm Artar probably would need a #1 shutter. Or would it??
3- On the same part of the Schneider web site, there is a brochure on Repro Clarons, in which to my amazement I found that a Repro Claron 9.0/210 in its time was offered in a # 0 (!) shutter, in which it weighed only 190 gr! So this would be a 210 mm for 190 gr, like the M-Nikkor, but without (?) the Tessar lack of bokeh.
Good light! Hening.
Bookmarks