Re: Camera Raw
Re: Camera Raw
- Subject: Re: Camera Raw
- From: Graeme Gill <email@hidden>
- Date: Wed, 26 Feb 2003 14:03:11 +1100
bruce fraser wrote:
>
Every striped-array camera I've seen responds differently to daylight
>
and to tungsten -- some are much better than others, and my DCS 460
>
is particularly bad. But I'm skeptical that any single custom profile
>
will produce accurate results under tungsten and daylight with all
>
lenses at all reasonable exposures. Certainly, most custom profiles
>
do not (and I'm keenly aware that all profiles aren't created equal).
But the spectral sensitivities aren't going to change much
under different conditions, so a (non-ICC) profile based on
the spectral characteristics of each channel can pretty
easily be converted to any sort of ICC-like lighting/white point
profile you like.
I guess I'm surprised that Adobe chose this D65/A scheme as
the basis for camera profiles (although it has practical
advantages).
Graeme Gill.
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