Quote Originally Posted by Neanderman View Post
My photo professor, who did a lot of multiple exposure work, said to just make two 'normal' exposures. ...
For negative film, I agree with your professor. With double exposures, the 1/2+1/2 theory can lead to underexposure in some image areas. This is a far bigger problem than overexposure for negative film. Therefore, the overexposure, potentially caused by two normal exposures, is a much smaller risk, and probably turns out to be no risk at all but a benefit (improved shadow detail)!