On 11/30/05, Gonz <[EMAIL PROTECTED]> wrote: > > > Rob Studdert wrote: > > On 25 Nov 2005 at 0:14, Jay Taylor wrote: > > > > > >>Rob, > >>Verrry Nice! For fun try holding down the mouse and panning through > >>the QTVR at ever increasing speeds. > >>Did you have to use a specialized tripod head to make this image? > >>Again a fantastic job Rob. > > > > > > Thanks Jay, > > > > The head is a standard 3 way unit but with the addition of a macro slide > > rail which is fitted with a QR plate and shoe so that I can clip it in > > between the tripod head and camera. This then allows me to add a horizontal > > offset to allow the pivot point to be set at the lenses optical nodal point > > in order to minimize parallax errors. > > > > Where do you get info about a particular lens' nodal point?
Trial & error testing. At least that's how I'm doing it. Dave > > Cheers, > > > > > > Rob Studdert > > HURSTVILLE AUSTRALIA > > Tel +61-2-9554-4110 > > UTC(GMT) +10 Hours > > [EMAIL PROTECTED] > > http://members.ozemail.com.au/~distudio/publications/ > > Pentax user since 1986, PDMLer since 1998 > > > >
