What's with all the Konica Hexanon lenses. Perhaps someone has a handy weblink to a good summary/performance of each one? I have been cruising the threads on here for adapted lenses but just thought I would pose a basic question: Is there really much difference between all the 50mm lenses? Hexanon 50mm f1.2 Hexanon 50mm f1.4 Hexanon 50mm f1.7 Hexanon 50mm f1.8 Hexanon 52mm f1.8 Hexanon 57mm f1.2 Hexanon 57mm f1.4 Hexanon-M 50mm f2 And a shout out to the Hexanon 40mm f1.8. Fill in any I missed, thanks!