Per my recent post on the g-claron 210mm: trying to understand more and looking for a better 210mm for 8 x 10: I understand users find lenses that do better than the manufacturer's specs.
I thought I might evaluate the g-claron 210mm and a rodenstock 210mm sironar-N by putting them on my 7 x 17. (Per sandy king's post on the computar 210(http://largeformatphotography.info/lfforum/topic/498719.html)). If I have this right to just cover 8 x 10 we need a 325mm image circle. The g-claron image circle spec is 260mm. The rodenstock sironar-N is 301mm. So maybe the rodenstock will do well?
Also a 210mm angulon spec is 362mm image circle and I saw a lens repro ad stating it is a 11 x 14 lens - isn't that pushing it?
Last: is schneider more conservative than rodenstock on specifying image circles or is there just no good sense to thses specs?
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