Hi all, A bit of a noob question here: I have noticed when I use a really wide (e.g.12mm) focal length, objects close up seem stretched a bit. I am supposing this is the opposite of the compression effect of telephoto lenses, but please correct me if there is a better explanation. Anyways, I am learning how to do panos for landscape, and while I can certainly see the convenience of taking a single, wide angle shot, it seems to me that using a more mid-range focal length and stitching several shots together offers advantages both in detail and possibly this distortion effect (if there are foreground elements, that is; I don't see a noticeable effect at longer distances). Is this correct, or am I missing something? If it is correct, why would any serious landscape photographer not do panos all the time? The answer will partially help me focus on developing landscape technique, but also help me decide whether I want to keep my 12mm f2 (for which I may post more questions to factor in my decision).