So I was able to get an older copy of the 50mm 2.5 Macro for cheap from a friend and it is nice to have the "macro" ability, but the AF is really slow and LOUD. Will the 50mm 1.8 be much of an upgrade, or will I be disappointed and want the 1.4 or the 1.2....not really in the market right now for the 1.2 I will be shooting some street stuff and some baby portraits. I have the 85 1.8, and it is awesome shooting portraits outdoors, but I think I would like to be closer to my subjects when shooting inside. Let me know your thoughts. Thanks!