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Mike Kovacs

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Posted on Wednesday, October 19, 2005 - 07:47 am:   

Thanks Rick - I do know the guts of Compur shutters intimately but this one works quite differently. The mainspring is on a geared piece that interfaces with the cocking ring.

It looks like the shutter may have been originally designed with a self timer and/or M-synch, because one end is completely empty, has another gear on the cocking ring opposite this empty space, and a pallet without a matching star gear left of the shutter release.

http://daniel.mitchell.name/cameras/seikosha/seikosha.html

Looking on Dan Mitchell's site, it appears to be quite similar to the earlier Seikosha and he does mention that later models were shipped without M-synch or self timers.

When I take the main spring off, I have not been able to actuate the shutter leaves, so I assume they must be stuck. Will brave the job and pull the whole thing apart :)

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