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

Author Message   M_currie Tinkerer Username: M_currie Post Number: 290 Registered: 07-2006 Rating: N/A Votes: 0 Posted on Monday, March 26, 2012 - 07:16 am:    It's pretty easy to check a shutter for capping or dragging, etc. Take the lens off, and open or remove the back, and hold the camera somewhere near arm's length, aiming it toward a window or other bright light. When you operate the shutter, you'll see the whole frame lit evenly, if the shutter is working correctly, even in high speeds, owing to the persistence of vision. If it's not working right, you'll usually see only a portion of the frame. I just tried this with an old F, and it works that way even at 1/1000. You can also check flash sync operation this way, since if sync is off you won't see the whole frame, if anything at all, when the flash fires.