----- Original Message ----- From: "Mike Kovacs" <mskovacs@xxxxxxxxxxxx>
Sent: Wednesday, October 04, 2006 4:24 PM
Subject: [rollei_list] Re: 2.8C shutter speed
You can see what Richard speaks of below, in an article I wrote a couple of years ago:Its the force of the spring on the speed ring thats pretty high. You can feel how much force is needed to move the speed ring to 1/500th when the shutter is cocked. My warning about jammed springs is not theoretical, I've had it happen. Going down from 1/500th is not a big deal but still takes some force.
This is a late 1940's era Compur Rapid shutter with the booster spring 1/500 and no flash synch. I can't really see why changing speeds while cocked is an issue. There is only a small amount of spring tension applied to the speed ring cam by the escapement post that rides in it when cocked.
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