Longshadow wrote:
I thought of that also, but "pressing" (instead of squeezing) a shutter button on the right will either tilt the whole camera down a bit or just the right-hand side. If the right-hand side of the camera goes down, the horizon will be tilted up on the right, not down.
I have that same problem too sometimes. When I was first learning how to do this, it was as though I was on a boat in rough sea. After a while I'd take my frames and tilt and crop them through PS. Now I set my camera AF Point Selection to Automatic Selection and center you subject within the dots on you view finder. And when you're ready to shoot Ancor your camera firmly on your face, nose and cheek. If a tripod or monopod is inconvenient this seems to work best for me.