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Author Message   Winfried Rating: N/A Votes: 0 Posted on Sunday, November 21, 2004 - 02:26 pm:    The problem is that dissolved grease does NOT evaporate. Just pouring in some lighter fluid does not remove the grease on the gears but just distributes it inside the shutter - and sometimes on the shutter blades. Although it is better to disassemble the shutter completely (there is an article covering this issue in the repair article section) in most cases it is sufficient to remove the front lens cell and gently wipe the blades with lighter fluid. Then fire the shutter several times and wipe dry, and repeat this. To check whether the blades are ACTUALLY clean let the shutter rest for a week and then try to fire it at 1/1000. If there is visible movement of the blades (seen from the front) it probably still is somewhat gummed. Repeat the above mentioned procedure etc etc.