D800 auto ISO & flash (SB-900 & build-in)
Can you tell me why D800 's auto ISO works differently with on-board flash than
SB-900 (or 910)?
With build in flash, camera sets ISO as if no flash exists and then uses the flash as a fill
With SB-900, camera sets ISO only 1-2 stops higher than the minimum set, and the rest of light
is covered by the SB-900.
I find the 1st approach a lot better and is a pity that is not followed for the SB-900
approach, too. Does anybody knows why this happens?