Rate this post by selecting a number. 1 is the worst and 5 is the best.

Author Message   Scott Tinkerer Username: Scott Post Number: 144 Registered: 07-2006 Rating: N/A Votes: 0 Posted on Monday, June 06, 2011 - 10:33 pm:    My way to remedy the sticky leaf shutter malady is to first remove all lens elements from the front and the back. Set shutter speed to 1/30 or nearest. Then drop 3-4 drops of naptha onto the shutter leaves, tilt the camera around so that the solvent can ditribute evenly, then release the shutter a few times. That usually makes it open. If not, set on B, hold down the release, and nudge the shutter open gently with something blunt and not too hard (e.g. a wooden chopstick or toothpick). Once shutter is opening and closing, fold a square inch of paper towel into a very tight, small wad, and use tweezers to wipe the shutter blades dry. Drip 3-4 drops more, tilt, release shutter a few times, repeat wiping with a clean wad of paper. Do it to both the front and back of the blades. Repeat as necessary until the shutter releases normally. Wait a few minutes for the solvent to dry completely and test again. If it is opening normally on speeds at or above 1/30, but staying open too long on 1/4 or 1/2, then your problem is in the slow-speed escapement gears. Gain access to the gearbox are apply 3 drops of naptha directly to the gearing, release the shutter on 1 second, repeat until it sounds about right.