I'm talking primarily of the DSLR lineup not the M mount stuff which is completely irrelevant to my uses. As DP mentioned the Planar 50 and 85 1.4's are very average performers and very expensive with it. The Otus might be great but it goes completely away from your ideal of a simple optical construction and it's ridiculously expensive with it. There are a lot of gems in the lineup, sure, but they're almost all very expensive and compared to some of the first party and even third party options they look like very questionable value propositions. I'm not saying Zeiss has no merits I'm saying it's hardly surprising that lenses that cost as much as the best lenses in the Canikon lineups are then criticised for not matching up optically, so obviously questions such as Raymond's are going to come up and a simple of retort of "god why do people care about IQ get a life and spend £1k on a lens never mind the performance" type responses isn't really going to do much to convince anyone.