I'm a bit confused about the relationship of the exposure compensation dial
and if it affects the foreground subject when using a TTL flash. I'm
shooting underwater and am using an N90s and TTL flash. What my colleagues
tests have shown is that the exposure compensation dial only affects the
background of the subject while the flash's TTL circuitry maintains the
proper foreground. If this is the case it seems the only way to darken the
foreground is via the asa/iso dial. When this line of discussion arises
amoungst fellow photographers there seems to be a wide variety of opinion
as to the function and affect of the exposure compensation dial. Any
enlightenment would be most appreciated
Scott