----- Original Message ----- From: "Kostas Kavoussanakis" Subject: Re: The JCO survey
> On Thu, 19 Oct 2006, William Robb wrote: > >> Had Canon so desired, they could have left the register distance >> alone, >> and it should have allowed adapting FD lenses to EOS cameras, though >> the >> lenses themselves may have needed modification. >> It's a pretty simple concept to get ones head around. > > Thanks, I had assumed that there was an advantage to the user from the > register-distance change that Canon introduced. They moved the register distance a grand total of 2mm. Just enough to screw up infintiy focus. There is a good possibility that the reflex mirror would crach into the actuating pins on the lens, hence my comment about the possibility of the lens requiring modifications (read Cottyized) to mount. As it sits, an FD lens user must put his lens onto an optical converter to use it, which is hardly an ideal solution. William Robb -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
