Talking about comparable lenses, in particular the Rodenstock Apo-Sironar-S series vs. the Schneider Apo-Symmar-L.
I'm considering upgrading my lens kit, and have narrowed my choices to the two series mentioned above for medium and long FLs.
I've always considered them to be pretty comparable, but I don't have a lot of experience on which to base that opinion.
Any thoughts? (Yeah, I know... Fords v. Chevies... but please, factual comparisons of performance)