Re: Digital Camera Profiling
Re: Digital Camera Profiling
- Subject: Re: Digital Camera Profiling
- From: email@hidden
- Date: Fri, 18 Apr 2003 09:02:32 EDT
In a message dated 4/17/03 8:54:02 PM, email@hidden writes:
>
REAL WORLD EXAMPLE: I'm currently in Vancouver shooting games at EI800,
>
through tempered glass (green tint) with available light. <snip>. All that
>
it requires is
>
a good custom gray balance in each scenario.
>
Interesting example... let's take it one step farther. Shooting through that
green glass: if you want the "feel" of the green glass included, you would
gray balance with the card inside, but that would be pretty much impossible,
as the light source on the field outside is not available inside, and if it
is, it has been filtered through the green glass. Of you could get someone to
flap their wings and hold up a gray card outside the glass so that it would
cancel out the tint in the gray balance. Unfortunately the green tint effects
various colors differently, and actually eliminates the distinction between
some tones, losing the information that would render them distinctly, so this
would not offer exactly the result that shooting without the glass (or the
tint) would offer, but more an impression of what you see through the glass,
more or less normalized to remove the tint, with some possible quirks due to
differential filteration and lost data. I'm sure that profile is still a time
saver for you here, but things get pretty subjective at some point down this
path, and the whitepoint slider in Raw offers simpler, more direct visual
feedback than the white end channel sliders in Photoshop Levels, where I
would end up adjusting this after I didn't care for the profile's results.
C. David Tobie
Design Cooperative
email@hidden
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