It was kind of joke about competing with underwater photographer. But
I was not talking about white balance. Lucite or whatever they use at
my local aquarium breaks up the spectrum the bigger the angle of view.
So white things in the middle of the frame have red edges at one side
of the frame and blue purple edges at the other side of the frame.
That is visual even without taking a picture.
Winsor
Long Beach, California, USA
On / March 7, 2008 CE, at 12:05 PM, Chuck Norcutt wrote:
> I'm sure it can given a reasonable white value in the picture or in a
> test image for that purpose. But why do you need PhotoShop? Just
> take
> the shot under a custom white balance using something reasonably white
> that may already be in the tank or something white you stick into the
> tank for the measurement.
>
> Chuck Norcutt
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