Researching some options for replacing an adapted 50mm Super-takumar on an APS-C pentax camera. I like this lens a lot but its handling is not the easiest on digital. It's great when mounted on a Spotmatic, though.
Is the Samyang 50mm T1.5 basically the same lens as the 50mm f1.4 AS UMC, but with clickless aperture? The smooth aperture control of the T1.5 version is fascinating, but this lens costs about 100 € more than the f1.4.
Another one I'm interested in is the Pentax DFA 50mm f2.8 macro. That one gets very good reviews at PentaxForums. I could use the DFA as a general purpose lens and also for digitizing 35mm film negatives.