I sometimes (about 5 times per year) decide to shoot a panorama, just for me, with no intentions to sell or use the photo outside my family and close relatives.
Currently I use my Pentax DAL 18-55 lens and free Hugin software for it but I plan to buy Samyang 8 mm fisheye. I made few panoramas using my monopod (better than to shoot "from hand"). However I read something about things like nodal point etc. and found out that the head mount should be located not on the bottom of the body but near the rear lens element.
I know of things like Nodal Ninja etc., but it is too expensive and I do not plan to shoot panoramas often. When I would stick with my monopod and lets say with the Samyang fisheye, than some simple small and light aluminum profile with two holes, tripod nut and screw would make it possible to mount the camera and rotate it around nodal point - is it right? Does it make sense to build such gadget or do you think I will have similar results using standard mount?