Have to totally agree and have only had a 56 M3 with 50mm Summicron for about 16 years. The negs print more like 120's with tonality & sharpness. Comparative Pentax images are crisper, more micro-contrast and appear slightly grainier despite being exposed & developed at the same time in the same multi tank.
Originally Posted by Sean
The only other camera system I've experience which produced similar quality results on 35mm was an Exacta VX100 system. Can't take credit for the images I just did all the processing.
It's the way the lenses are computed.