900R Preset White Balance
Posted 29 November 2007 - 12:00 PM
Posted 29 November 2007 - 12:11 PM
But if you are in A or B, there is already some leftover white balance being stored, and the filters will end up coloring that as a starting point. Of course, you can use that as a trick to get certain affects, for example, white balancing with the camera using the "C" filter (sort of a halfway correction like an 81EF) outdoors so that "C" becomes neutral in daylight, and then switching to "D" (or "A" if that is an 85 filter instead of a cross filter) for a partial warming effect.
I suppose it's also possible that someone monkeyed around with your Color Matrix...
Posted 29 November 2007 - 04:02 PM
It sounds like you had the WB switch in the A or B position rather than PRST (preset). In PRST, the camera basically goes for a 3200K balance and uses the filter wheels to color-correct, so the RGB gain levels are all at "0".
It's quite possible to reset PRST, so they can never be guaranteed. It's just a white balance somebody did in the engineering settings.