Originally Posted by janosh
Same sort of question, K20D and "M" lens...green button doesn't seem to do anything other than (evidently) DOF preview.. I thought it was supposed to meter?
How do you meter with an M lens (85/2) ? M? Av? User?
non contact lenses
you put the camera into M mode
you spin the aperture ring to select the aperture
then you hit the green button, it "steps down" (to your selected aperture) and meters, selecting the proper shutter speed.