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Re: Converting Lab to sRGB using AbsCol looks suspicious
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Re: Converting Lab to sRGB using AbsCol looks suspicious


  • Subject: Re: Converting Lab to sRGB using AbsCol looks suspicious
  • From: Steve Upton <email@hidden>
  • Date: Thu, 5 Feb 2004 11:08:52 -0800

At 1:23 PM -0500 2/5/04, Roger Breton wrote:
> >> I know it9s not your typical color conversion but converting a neutral
>>> scale
>>> from Lab to sRGB or AdobeRGB with an AbsCol intent looks awfully
>>> yellow to
> >> me? RelCol does not do that. Is D50 that yellow?
> > > Relative(!) to D65/6500K it is, I'm Absolutely certain!
>>
>> Have a nice 5000K day,
>> Terry
>
>Thank's Terry and C.Dd, for you always enlightening replies.
>
>What strikes me, though, is that when I look at the light outside of my
>studio right now (1:00 pm) I don't have the impression that the light is
>that yellow? And I know for a fact, for having measured this light over and
>over so many times over in the past, that this light is unlike 6500K. In
>fact it's always between 5200K to 5500K.

It has to do with the brightness of the light. In a very dark room, D50-calibrated displays look a bit yellow but you can adapt pretty quickly. The only people I've found who like D50 calibration are those who work in reduced light environments. In brighter surroundings D50 tends to look much more yellow and much less desirable. Daylight at D50 (or so) is much much brighter - even on cloudy days.

Regards,

Steve

________________________________________________________________________
o Steve Upton CHROMiX www.chromix.com
o (hueman) 866.CHROMiX
o email@hidden 206.985.6837
o ColorGear ColorThink ColorValet ColorSmarts ProfileCentral
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 >Re: Converting Lab to sRGB using AbsCol looks suspicious (From: Roger Breton <email@hidden>)

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