I'd suggest the hat trick!! (substitute the hat with a 8x8 or so piece of dark
cardboard or similar flat material. Place the hat in front of the camera,
slide the shutter out, rapidly remove the hat, count your exposure second(s),
place hat rapidly back in front of camera, slide the shutter
Thanks for everyone who answered my query. As I stated I am having this
problem only on about 1/2 of my images. The ones I expose fast, that is at 1
second are usually no problem, but those at 2 seconds or longer usually have
this problem. Maybe I could take the shutter off and put a piece of
