Easy. The LCD overlay for the viewfinder that displays the active autofocus points could also carry APS frame lines that would only appear (or be highlighted) when the sensor switches to APS mode.
Regards, Anthony Farr ----- Original Message ----- From: "P�l Jensen" <[EMAIL PROTECTED]> > Mark wrote: > > > So your 10+ megapixel full-frame DSLR would automatically become a 6 > > megapixel "APS" DSLR whenever the appropriate lens was attached. > > But what about the finder? > > P�l > > >
