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Author Message   Scott Tinkerer Username: Scott Post Number: 134 Registered: 07-2006 Rating: N/A Votes: 0 Posted on Tuesday, March 22, 2011 - 09:05 pm:    First try removing the front and back lens elements, so you can get at the blades. Then, 2-3 drops of naptha, tilt the camera in all directions, then wind and release shutter a few times. Carefully wipe the wet naptha off the blades, fire the shutter, repeat. Turn it over and do the same thing from the back. Repeat a few cycles, and that might fix it. If it doesn't help, then you may need to dismantle the shutter completely, which is difficult, but not impossible.