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		Thanks Phil,
  When I talk about flash, I'm thinking about using flash as a supplemental source for a general scene.  So, my exposure is somewhat determined by the ambient light, whch sets the time.
  I'll check the new version of Expodev that I downloaded back in November, but I thought it does not permit going into negative EV values.  (I thought I had tried it, but maybe I'm remembering the older version).
  ---Michael   |  
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