Alexander wrote: > > Apart from (the) 7th digital read-out pin there is > another difference between A and F/FA lenses. The "A" > contact of the F/FA lenses does not retract when the > aperture ring is set off A. So all contacts seem to > remain connected even when the lens is set not to A.
Although the "A" contact remains mechanically connected, I believe you will find that it is electrically isolated when the aperture ring is moved off the "A" setting.
