Thanks for your ideas.
To all that responded, thanks. I tried to view the picture of you Randy but I guess my browser is too old or something. I'll try again. That would not be what I wanted though as I want to be able to see through the people. That was a good idea to just meter at twice the ISO of the film, and to increase the exposure by the number of exposures one wants to make. I know that keeping the camera rock solid would be a problem and I was thinking that using my camera on 'T' and covering the lense might be the best bet. For that I could pick an exposure of say 10 seconds, expose for 5 seconds, then hold a cover over the lense while the subjects moved away. Then remove the cover for 5 seconds and only cover it again when I took it off 'T'. That might present less movement than cocking the shutter and hoping the camera didn't move. Ric.