Re: Lightroom
Re: Lightroom
- Subject: Re: Lightroom
- From: Andrew Rodney <email@hidden>
- Date: Tue, 10 Jul 2007 12:45:40 -0600
- Thread-topic: Lightroom
On 7/10/07 11:50 AM, "Tim Vitale" wrote:
> This may be the way it is looked at, but I understand that Lightroom uses
> ProPhoto RGB
> (D50@G1.8) at D65 and Gamma 2.2 for 16-bit processing, and will apply that WS
> unless
> another is chosen.
Processing color space is linear encoded gamma using ProPhoto primaries.
Histogram and numbers are ProPhoto primaries and an sRGB TRC (kind of 2.2
gamma encoding). Then, as mentioned, you have an option for three encoding
color spaces of which the numbers have no direct correlation. In ACR, the
numbers are directly based on the encoding color space set but that's not
how it works in LR.
There's a bit more about color management in LR here:
http://www.ppmag.com/reviews/200701_rodneycm.pdf
Andrew Rodney
http://www.digitaldog.net/
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