RE: Art Duplication
RE: Art Duplication
- Subject: RE: Art Duplication
- From: Roger Breton <email@hidden>
- Date: Sun, 20 Sep 2015 21:42:27 -0400
Illah,
How do you get uniform illumination with halogen bulbs?
/ Roger
-----Original Message-----
From: colorsync-users-bounces+graxx=email@hidden [mailto:colorsync-users-bounces+graxx=email@hidden] On Behalf Of Iliah Borg
Sent: 18 septembre 2015 20:33
To: Don Hutcheson <email@hidden>
Cc: email@hidden
Subject: Re: Art Duplication
> Of all the art galleries I’ve trained to do art capture, the most successful (by far) were those I persuaded to use plain old hot, inefficient, but beautifully continuous-spectrum tungsten or halogen bulbs, suitably heat-filtered to avoid melting too much paint!
My experience, too. No SoLux filtered, just halogen lights. Things to control tightly are flare and polarization. Flare messes with colours, especially if the profile is based on 3-D LUTs
We profile from a target made with the oil paints, measured by a spectro.
As to profiling, one can make Argyll behave in colorimetric mode rather than in "pleasing".
--
Best regards,
Iliah Borg
LibRaw, LLC
www.libraw.org
www.rawdigger.com
www.fastrawviewer.com
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