Hi Hermes,
Thanks for the reply but in this type of shoot there are no choices or posing. The guests are where they are and that is how they must captured. Monolights or off camera flashes do bring up the ambient room light level but from what you're saying I gather that the best I can do is to reduce and soften shadows on the walls, but not eliminate them.
My subject were not up against the walls and at times they were as much as 6 to 8 feet from the wall, and obviously when they were further away I did get softer shadows but sometimes they were standing 1 or 2 feet from the wall or chatting with a group in a corner.
Reducing output with a softbox won't affect me much. I was never at a loss for firepower and was shooting comfortably at ISO800, never boosting FEC by more than +2/3 stop and using an 85mm f/1.4 lens between f/1.4 and f/4.
Regarding the red eye... am I correct in my conclusion about also getting the flash up higher away from the lens?
Robert, the higher your flash (on a bracket), the lower the subjects' shadows will be. With a good bracket and softbox on the flash, in most cases the shadows will be pushed down out of shot, or at least softened and distanced from the subject enough that they will no longer be a major distraction.
Yes, getting the flash away from the lens axis will reduce red-eye, as will enlarging the light source.
I'd say he doesn't have the forward-facing eyes/pupils that create red eye, so what we're actually seeing is some other unique part of his optical chain reflecting the light. Crazy effect though.

