This is called parallax error. A basic pano head is essential when you start with pano's. A simple bracket is good enough. Pentax SLR's have their tripod mount in the lens axis. Any straight bracket will help you move the nodal point above the tripod centre. My first pano head and tripod was a laserleveling tripod from the local building market (30 euros), (a cheap tripod with a big yellow rotating head in which a laserlevel can be mounted)
> Rob, I see your point... But I have just one concern here... I tried to > stitch few images shot with 43 Ltd. Prior to that I only used 77 Ltd or > wide end of F 70-210... Apparently when I moved the 43 Ltd every so > slightly I changed the relative position of some elements in the frame > in such a way that stitching became geometrically impossible. > > What came to my mind this time is that, perhaps, by applying PTLens one > can "flatten" (or de-fish, if you will) the view hoping to compensate > for the effects I described above.
