EJohnE Posted February 18, 2010 Share #1 Posted February 18, 2010 Advertisement (gone after registration) I had a IIc back in the 1950s, for which I bought an alternate shutter dial. That was cam-shaped, and was designed to make contact as it spun with a gadget to set off a flashlight. I remember using it with a Braun Hobby electronic flashlight. It is not the thing shown in the Wiki, but a rather larger gadget, and the cam was the dial, not a bit screwed on top. I had recently assumed that it was of Leitz make, but it may have been from some other manufacturer. I may be floating in an amnesiac sea of confusion, but, dammit, I still have slides taken with that combination. Any ideas? John. Link to post Share on other sites More sharing options...
Advertisement Posted February 18, 2010 Posted February 18, 2010 Hi EJohnE, Take a look here pre IIIf flash synch.. I'm sure you'll find what you were looking for!
lars_bergquist Posted February 18, 2010 Share #2 Posted February 18, 2010 I think you have a IIc with a CMVOO. That was the code for the cam-shaped dials supplied by Leitz for use with the CAVOO flash unit. It was a basically cylindrical unit with a fairly large fan-folding reflector. It coupled by a special 'Vacu' synch unit that screwed on the shutter release and was operated by the rotating cam dial, which was supplied in different versions for different cameras. Your IIc should have taken a CAVOO-C. Synch speed was just 1/10 with long-peak flash bulbs, but there was also a Vacu for electronic flash. This Vacu, supplied separately, was the COOIF. Any bells ringing? All this Rube Goldberg/Heath Robinson gear was supplied 1951-53 only. The old man from the Kodachrome Age Link to post Share on other sites More sharing options...
jc_braconi Posted February 18, 2010 Share #3 Posted February 18, 2010 It can be a Geiss one : Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/112972-pre-iiif-flash-synch/?do=findComment&comment=1230062'>More sharing options...
EJohnE Posted February 18, 2010 Author Share #4 Posted February 18, 2010 Thanks Lars and JC. It was not the Geiss one by the looks of it, but sounds like the COOIF as suggested by Lars. As it is over half a century since I used such a gadget, my sagging (soon to be 80 year old), "brain" may be excused for being so imprecise. If no-one is looking, I must confess that some enlargements I made during the '60s, show that I used my M2 to take them. I can't ever remember having an M2, although my right index finger has some residual sensation of resetting the exposure counter. Confusion reigns, John. Link to post Share on other sites More sharing options...
jc_braconi Posted February 18, 2010 Share #5 Posted February 18, 2010 Here is a IIIb of my own with this cammed dial shutter for use with the vacu sync. Link to post Share on other sites More sharing options...
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