Quote:
Originally Posted by kencaleno
Correct white balance ensures that whites end up as true whites in an image-If this is so,18% grey must also be correct-your basis for correct exposure. Don't lose sight of the fact that you camera meter reads light reflected from subjects,and different tones reflect differently- so if say you were using tungsten White balance,you would get a different exposure reading than if you used daylight white balance, because of the different tonality of the light reflected from the subject regards, Ken
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So, just to clarify.
Are you saying if I use “Daylight” as opposed to “Tungsten” (or whatever) while the camera is on a tripod, pointed at the exact same subject, on the exact same Aperture, shutterspeed and ISo settings.. the in-camera exposure meter will move when I change the WB? Even if its ever so slightly…
Are you saying it will be less then 1/3 EV ? (which is the increments on my camera)
I do agree that different tones reflect light differently. I’m Happy there,
Digital WB is done after the exposure is taken, its merely an algorithm in the cameras brain. (I’m talking producing an in-camera jpeg from the Raw)
Film exposure however, (I have no experience with film.. so I’ll leave this bit open ended)
could exposure be effected by the WB correction because there is a physical colour filter between the subject and the film. Thus interfering with the light.
or is WB primarily a darkroom thing with film?
I’ll need to experiment with this.
Interesting topic tho’
Quote:
Originally Posted by RexK_Cozumel
Actually I am with Ken on this one. If you adjust the white balance in ACR after the image is taken and then apply a auto levels or auto exposure adjustment you will see that the program will alter the settings.
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hmmm.. nice point. i dont use autolevels so never noticed that..
*ponders*