I just tried this out recently, and it's fairly easy to calculate. As an example, if your metered reading suggests a 1/2 second exposure, you can build up the exposure by exposing 15 times at 1/30 sec (i.e. 15 x 1/30 = 1/2). You can use faster shutter speeds, but that will require many more exposures to build up to the final desired value. I don't believe there is any compensation to worry about until you get to much longer total exposure times.
Hope that helps,
Originally Posted by PhotoTyler
Last edited by dlin; 08-04-2004 at 11:08 PM. Click to view previous post history.