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Calamity Jane
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, May 13, 2004 - 08:06 am: | 
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Howdy fellers! I'm new here and I've got a question.
I picked up a lens on E-bay for a LF camera I am building. The shutter is a Synchro Compur and it's running slow. 1/200 tests out at 1/84, 1 Second @ 1.5 Seconds and the slow speeds are a bit erratic.
It obviously needs cleaning and lube.
I've done camera work before and lots of mechanical clock restorations, but my only other encounter with a shutter (on a Rolicord) was less than great.
(The Rolicord dropped a leaf in the shutter and I didn't expect to be able to fix it so I didn't pay enough attention to how it came apart! When I got to the bottom, I discovered that I COULD repair the leaf but didn't have the info to put all the mechanics back together - SHAME! A professional repair shop referred to the Roli shutter as an "unservicable" module, so I did better than most ;-) )
So, what do you use as a proper cleaning agent for shutter mechanism?
Do they get lubed or left dry?
Does anybody know where I can find a diagram of the Synchro Compur shutter? (So I can get it apart and back together again.)
Thanks fellers! |
Henry
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, May 13, 2004 - 08:29 am: |
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Easy lens/shutter to work on.
Just do a Google for Synchro Compur and you'll find a bunch of info.
Henry |
rick oleson
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, May 13, 2004 - 02:58 pm: |
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here's some real basics, but it doesn't go deep enough to get to the shutter blades: http://rick_oleson.tripod.com/index-55.html
I have more stuff at home that may help. the general construction of leaf shutters is very similar but there are detail variations even within a brand so you have to be a little flexible ....
Depending on the type of tester you're using, leaf shutters tend to read slow at the highest speeds even when they're adjusted correctly due to the blade travel time from center to edge... and the actual effective speed varies slightly based on the aperture set. this becomes negligible at a stop or 2 down from the top speed. |
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