@miata2u I was in a hallway. There was light (not real bright but it was daytime) coming from doorways that were just in front to the right and left of me. So it was pretty dark. I set the shutter for 30 sec, and hurried out after 15 sec. The article I read said to move out of the camera range at right angles to the camera. This article, http://blog.muddyboots.org/2010/02/ghostly-effect-using-slow-shutter-speed.html was helpful to me. Good luck. Let me know if you post your results.