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05-29-2010, 07:55 AM   #16
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Lowell Goudge's Avatar

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in photo 2 of 3 you can see to the right of the lens contact block the small circuit board that seems to go nowhere. I suspect this is where the contact is made, possibly to the points below it on the part that the flexible pcb is wrapped around.

remember yoou are looking for a way to connect the 3rd contact point to the lens mount only when the lens is in the A position.

05-30-2010, 01:55 AM   #17
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Join Date: Mar 2010
Location: Berlin
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You could unscrew the mount on body, put a little piece of alluminium foil over the "A" pin (the recessed one, 3rd pin starting from the red dot) and then screw back the mount on.
This way the pin will be always shorted (as if you have a lens mounted on with the aperture on "A" position) but the camera can still know what lens you've mounted, at least with newer lens.

You could give it a try to see if the only problem lies whitin the malfunctioning "A" position on the lens.

I've done it to try P-TTL and matrix metering on older lenses
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