Hi, I’m unearthing this thread because I just received a lens in a prontor pro shutter.
I was under the impression from reading this thread and others that a pair of cable releases would be enough to operate this shutter.
I have found that when using a Gepe cable release in the preview socket, my cable release opens the shutter, but when released it doesn’t close completely. It stays partially open, a lot like gummed aperture blades on a slr lens :
The catch is that the shutter performs perfectly fine when operated with the red “picture taking” socket, Even in bulb.
The seller says the lens was tested extensively days before I bought it.
Is it just a case of the wrong cable release?
Has anyone encountered this or did that white socket work for you with any cable release?
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