Re: WB, Gray Cards and Cloudy Days
Re: WB, Gray Cards and Cloudy Days
- Subject: Re: WB, Gray Cards and Cloudy Days
- From: Louis Dina <email@hidden>
- Date: Sun, 18 Aug 2013 19:11:25 -0500
Terry/Thomas:
Thanks for the suggestion about using the warm/cool patches. I only have
the standard 24-patch CC target that came when I bought i1Profiler (without
the plastic case, which seems pretty chintzy, by the way. For the money,
Xrite could include the whole enchilada, with warm/cool patches and all.)
It appears I am doing what many people suggest...ie, splitting the
difference between standard daylight and a gray card reading in overcast
conditions. Some people are using noon lighting conditions for all outdoor
shots and letting the image take on whatever color cast the atmospheric
conditions create. These responses seem to confirm my thinking for shots
which wish to capture the prevailing atmosphere and color.
When I want to eliminate the effect of prevailing conditions and to
neutralize the light, WB off a spectrally neutral gray card works great,
but it forces the exposure to simulate daylight conditions. That's what I
often want with portraits, macros, isolated objects, etc, but not
necessarily for scenics.
Are there any in-depth studies on color and human perception anyone can
point me to that deal with this more objectively and scientifically? No
problem if there aren't, but I'd like to have a better understanding of how
it works. I know it's a difficult and complex thing, so maybe this
information is not readily available.
Thanks again,
Lou
On Sun, Aug 18, 2013 at 5:24 PM, Terence Wyse <email@hidden> wrote:
> Why not just use the ColorChecker Passport and use the custom warm/cool
> white balance patches to get the scene rendering you want? Click one of the
> cooler patches to bias the WB to the warm side and visa/versa if you want a
> cooler WB. I do this all the time when shooting very early morning or late
> evening.
>
> Terry
>
>
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