On 11/12/05, Rob Studdert <[EMAIL PROTECTED]> wrote: > From a practical point of view if you wish to set up a rig with parallax > compensation all you need is something like a macro-rail which will allow the > camera/lens to be moved behind the tripod heads natural point of rotation. On > my kit I use a Manfrotto macro rail which has a graduated scale down the side. > I've empirically determined the correction factors for all my lenses so all I > do is look up my little printed table and dial in the appropriate offset. > (Dave > Savage can attest to how practical it is).
The only thing is, at night the tables are hard to read. You need a good torch <g> Rob's setup is very easy to use, & cheap to put together compared to purpose made pano heads. Of the panos I've made since using Rob's rig, none have been as easy to assemble. I intend to put one together, but I'm trying to figure out how to adapt it so that you can use it for taking portrait orientated shots. (BTW, if someone knows the actual distance from the camera base plate to the lens centre axis, could you please let me know.) > How I determined the offsets for my various lenses was to set up a pair of > high > intensity narrow beam LEDs, one close to the camera and one in the distance. I > then aligned them so that when the camera was perpendicular to them I could > see > only a single lamp. As the head was rotated I adjusted the offset until the > lamps remained precisely in line. Beware though that the offset will change > slightly with FL, all mine were measured at infinity. You can see a pic of my > nodal point testing set-up here: > > http://home.swiftdsl.com.au/~distudio/temp/IMGP2882.jpg (~86kB) I've got a good shot of that head <vbg> Dave
