Jostein wrote:
I missed the start of this thread, so forgive me if I'm veering off here:
I seriously suspect that lack of accuracy in exposure is the reason why the camera makers abandon the mechanical aperture coupling. Just before I unsubbed a good month ago, a couple of us did some very simple experiments that showed inconsistency in how much a camera would stop down a lens preset to a particular f-stop. The slack varied from lens to lens and from camera to camera, but IIRC, a half to one full stop was pretty common.
