The timing of this action is critical... I don't know how you can slow the
acceleration and deceleration of the moving parts without changing the
timing. If you add in a rubber stopper, or a spring or something, its going
to affect the closing rate or the reopening rate. A resilient piece might
allow parts to vibrate in resonance where a hard stop would not, also.
The slowing the reopening rate wouldn't affect the exposure, but you'd still
get the shock from the quick stop-down (which is necessary, the shutter
can't open until the lens is stopped down) and that -has- to come
before/during the exposure.
Slowing the stop-down rate will have to increase the 'lock time' of the
camera, its already longer than a rangefinder i.e. Leica M-4 etc. (not the
leaf-shutter types though).
Maybe the best way would be to disconnect the mechanism and rig the lenses
to manually stop down... just like 1956 all over again.
--
Jim Brokaw
Like most things it is more complicated than I thought. :-)
--
Winsor Crosby
Long Beach, California
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