On 4 Jan 2006 at 14:35, Tim Øsleby wrote: > > The only way that a measured movement > > of the body can be translated to > > offsets at the focal plane is if the > > lenses FL is known. > > I understand what you are saying, and you may be right. > But you may also be wrong. You simply can't _know_ that there is no way > around that problem.
I didn't say that there was no way around the problem but that the FL needs to be known, if it be determined by real time prediction (using an aux real time sensor for instance) or if the FL is simply dialed in then you have two potential solutions. :-) 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

