Hening Bettermann
12-Aug-2005, 14:05
Hi!
I have good news to share: Linos will on request adjust (shim) an Apo Ronar for infinity. I was so thrilled that I forgot to ask the cost, but the charge for adjusting a lens to a shutter is 80,- EUR, and I exspect something in that range.
My source is Hr. Dieter Wenzel --Dieter.Wenzel-at-linos.de, who has authorized me to share this info. He is on holiday from the 20. august to the 13. september.
He says that the difference is visible in the periphery, wheras the central parts will be equally sharp at infinity and close-up with either adjustment.
We also discussed swapping shutters in general. He confirmed the impression which was my own bottomline from discussions on this forum, namely that lens spacing is absolutely critical for modern/wide-angle lenses, and less so for older/narrower lenses. His opinion is that swapping always implies a risk of de-adjustment, and should be done at the factory. Depending on lens type, they use shims of 0.1 mm or 0.01 mm thickness.
Former threads on this topic included:
www.largeformatphotography.info/lfforum/topic/498712.html (http://www.largeformatphotography.info/lfforum/topic/498712.html)
www.largeformatphotography.info/lfforum/topic/502086.html (http://www.largeformatphotography.info/lfforum/topic/502086.html)
Good light! - Hening.
I have good news to share: Linos will on request adjust (shim) an Apo Ronar for infinity. I was so thrilled that I forgot to ask the cost, but the charge for adjusting a lens to a shutter is 80,- EUR, and I exspect something in that range.
My source is Hr. Dieter Wenzel --Dieter.Wenzel-at-linos.de, who has authorized me to share this info. He is on holiday from the 20. august to the 13. september.
He says that the difference is visible in the periphery, wheras the central parts will be equally sharp at infinity and close-up with either adjustment.
We also discussed swapping shutters in general. He confirmed the impression which was my own bottomline from discussions on this forum, namely that lens spacing is absolutely critical for modern/wide-angle lenses, and less so for older/narrower lenses. His opinion is that swapping always implies a risk of de-adjustment, and should be done at the factory. Depending on lens type, they use shims of 0.1 mm or 0.01 mm thickness.
Former threads on this topic included:
www.largeformatphotography.info/lfforum/topic/498712.html (http://www.largeformatphotography.info/lfforum/topic/498712.html)
www.largeformatphotography.info/lfforum/topic/502086.html (http://www.largeformatphotography.info/lfforum/topic/502086.html)
Good light! - Hening.