--- In #removed#, Snowy Aldon <lists@...> wrote:
> The targets that William has suggested would work well for tonal
> adjustments but will almost certainly give colour casts under most
> conditions.
Yes, you do have to be careful, and aware of reflections and other light sources, as you
mention.
But the technique I outlined has given us the best results we've had in 15 years of doing
panoramas.
Properly used, it never gives colour casts, or false colours, except in extreme circumstances.
We tried using colour charts and grayscale charts, but these were essentially useless, as they
are far too dependent on the lighting conditions.
The "best black" can be achieved by building a box, lined with black velvet, and open on
one side, so that the interior is completely unlit. But, we have found this to be unnecessary,
except in unusual circumstances.
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