Originally posted by rogerstg You're holding it wrong. With a long lens, you should be supporting most of the weight with your left hand holding the lens. You'll achieve better stability and sharper photos, regardless of the size of the camera body. It's like the difference between shooting a handgun or a rifle: cell phones and P&S are handguns, SLRs are rifles (esp with long lenses).
Support the weight with the left hand certainly, but when panning with a subject or simply trying to hold things together in a breeze, a firm grip with the other hand is very comforting.
Unfortunately, with the KP, and even more so with the K-70, taking a firm grip, especially in a hurry, often involves grabbing a thumb-full of control buttons ... really distracting having the various settings flashing away just below my eyeline when I'm trying to concentrate on a subject. Even more disappointing when I find the "drive" selection has changed to "multiple exposure" and I've got three beautifully framed shots all on top of each other