I have some nice old Minolta glass I've been enjoying, but I'm finding that 50mm is rather too long for general purpose use. I'm too broke to buy the 20mm pancake right now -- and I'm not convinced that it's a focal length I want. So what are some nice or fun adapted options in the normal 20-25mm range? Ideally looking for a fast prime, of course. I know there's CCTV lenses with their crazy bokeh, but what else?