I'm trying to work out how to balance flash and ambient light on my G3, so that I can get the background dark and the subject light. I am using Manual mode, setting my required aperture, ISO 100 and exposing for the background. I then take a photo with my Nissin flashgun on camera, and increase the shutter speed to get desired result. Now I know that the fastest sync speed on my G3 is 1/160, but even at this speed I cannot get the background as dark as I would like it. If I shoot in Aperture mode would adjusting the exposure compensation work or does this act globally to adjust the flash as well. Is there anyway to do this. Any suggestions please?