Dan, adelorenzo & winger,
Thank you all for your reply. The reason I am asking is because I just stumble across a certain technique called "Painting with Time.." used by a British photographer. He described the technique as to making a multiple exposure comprised of 60 or 120 shots of 1/60 sec. each in the same frame to make a 1 or 2 sec. full exposure. The camera that he uses is a Pentax 645NII, but he doesn't go into detail about how he sets the camera....
But you guys gave me the answer....
Thank you....
Thank you all for your help