> > UPDATE: > > The basic mod is pretty simple -- changing M to A. > And you don't have to modify anyting. > > 1) set the lens to the minimum aperture. f22, etc. > 2) short the A pin to the body or lens. Use a piece of foil or 32 awg wire. > > Without the lens information pins you'll not get matrix metering but you will get > automatic modes of operation.
Unfortunately you will get automatically wrongly-exposed images. The aperture actuator is designed for an "A" lens, and will *not* stop a "K" or "M" lens down to the correct setting; theresponse of the mechanisms is different. My calculations haven't been confirmed yet, but I believe the error will always be to over-expose (which is bad for digital). It will be by less than a stop at wide apertures, but the error will increase as the lens is asked to stop down further. The maximum exposure error depends critically on the exact motion, which I haven't measured, but looks like well over two stops.
