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Author Message   Fredtheoyster Tinkerer Username: Fredtheoyster Post Number: 9 Registered: 09-2010 Rating: N/A Votes: 0 Posted on Monday, February 21, 2011 - 04:44 am:    I've just completed work on a IIc that involved removing the shutter; I beleive the IIIc is very similar except for having a light meter. I removed the shutter assembly as follows: Looking at the camera from the front,at the top left of the shutter is a little cover for the gear that is used to wind the shutter. Loosen the bottom screw slightly and remove the top one entirely, so the gear can be pulled away slightly from the toothed ring in the shutter. Use a lens spanner to unscrew and remove the rear lens element from inside the camera. You then have access to the slotted shutter retaining ring which unscrews in the same way - the shutter assembly can then be pulled off. Reassembly is slightly more difficult as you will need to mesh the winding gear with the toothed ring correctly. Chris Sherlock's very knowledgeable pages http://homepages.ihug.co.nz/~Srawhiti/retinarack.html describes how to do this far better than I ever could. Best of luck, Jim