Originally posted by pepperberry farm if you mean the e-wheels, the K-50 does have two of them...
Good to know. For some reason I had passed on getting my father one as I thought the manual made it seem like that camera (and the K-30, which I thought was quite similar) only had one. I've only ever had a K10d, K5, and K3, and I would not like shooting in M mode (for instance) and having only control over one exposure aspect, which I thought was the case with some of the lower tier cameras (in any brand).
More generally, I would just recommend a camera that you can control aperature, shutter speed, and ISO fairly easily, which may be the case for most Pentax dSLR's these days.