Luka, IMO this forum is excellent, in the respect we can our thoughts and frustrations! Yes, differing perspectives but so much has been contributed here. I still feel you should try some of the other 75\'s as it may fill your niche, if not keep with the 90 Cron AA What I do see with the 75 Cron, it a great lens for portraits and street shots, from my limiting testing of the lens.
Ron, amazing set with the ZM 50 Planar! Great angles catching the mechanical decay