Yes, I know, yet another one, but I want advice from those that know more than I do, and have experience. And a poll will help me see quickly what direction it's going. I'm a train nut. A really big one, I own my own small scale coal fired steam locomotive (I inherited it from my grandfather, from whom I learned to be a train nut from.). Next month on the 11th is National Train day. I plan on going to the Arizona Railway Museum, and while there take lots of photos. I have my GF5, with the 14-42mm kit lens, but I want to get a new lens that's wider. I'm not rich, so that leaves me with 2 choices, one of the 7.5mm fisheye lenses, or the OLY 12-50mm. But I'm not sure which would be better for photographing the tight interiors of railcars, and also getting good exterior shots. There is a decent amount of room between the display tracks, but there may be a number of people there and I won't be able to stand back. I eventually want to get both lenses, but can only afford one now. Plus I have a family reunion this summer, so the more I can get out of the lens, the better I can justify it to my wife. I've always liked the fisheye look, as well as super wide shots (corrected from fisheye). But the 12-50mm has a nice draw because of the "macro" option. It'd make a good replacement of my Vivatar 28-80mm with macro that was "glued" to my AE-1 from my film days. Plus the Oly lens would allow me to not have to take my Pany 14-42mm kit lens. So what does everyone recommend? You can see my profile for the other mF and Canon FL/FD lenses I have.