I meant to say examine the color issues at the highest [screen] magnification/resolution, just before the image pixilates, in Photoshop and look at the juxtaposition of particles/canvas weave to see if they have a specific aliasing of color separation. Or, just what the hell is going on, here? I have just assumed the problem passage was sand colored. If the region is red or blue/purple it could be the PCS [profile connection space]. I'm always fighting the color changes introduced as the colors in the image go through **correction** in the profile. Most output profiles go through Lab PCS, not the more linear XYZ PCS used for monitor profiling. Bruce Lindbloom has an excellent explanation of this issue. See http://www.brucelindbloom.com/index.html?UPLab.html. Make sure you use the Munsell Display Calculator http://www.brucelindbloom.com/index.html?MunsellCalculator.html. In the Java MDC, set -- Model: Lab; Show: Radials; Select [sliders]: Hue 7.5PB, Value: 2, Chroma: 6. You will see the issue. Now move the Hue slider. The radials are not straight for certain colors, thus , blue/purple turns purple when it goes through the PCS, as does, red shift to orange. It happens often enough that I question the use of input profiles. I have certainly tried to use Lindbloom helper profile. ArgillCMS is the only tool that respects helper profiles, but it is just too basic for me, AS GOOD AS IT IS. How does the thing look if you print **without** a camera profile, just to see if it is the profile. My gut says UV and polarization are not the issue, if you have already varied the lighting positions and polarization angle. I sent you to Mike Collette because the scanning back is the *only way* to capture art correctly. The new 46 MP Foevon SD1 Merrill maybe workable as well. I have to talk with someone using the SD1 Merrill. [Please CALL ME, TX.] Tim Vitale Paper & Photography Conservation Oriental Scrolls & Screens in the Western Manner Digital Facsimiles & Digital Image Restoration Remastering still Film to Digital [distorted too] Archive & Collection Surveys Video & Film Preservation Surveys Preservation & Imaging Consulting Vitale Art Conservation 2407 Telegraph Avenue #312 Oakland, CA 94612 510-594-8277 510-508-4162 cell 510-891-1602 fax tjvitale@ix.netcom.com Website: http://vitaleartconservation.com/ Resume: http://vitaleartconservation.com/vitale_long-resume_v21.pdf Video Preservation: http://videopreservation.conservation-us.org/ (2007) Albumen Photography website: http://albumen.conservation-us.org/ (2001) Brief History of Imaging Tech: http://vitaleartconservation.com/bhit.pdf -----Original Message----- From: Millers' Photography L.L.C. [mailto:digitalimaging@dnmillerphoto.com] Sent: Wednesday, May 09, 2012 5:31 PM To: tjvitale@ix.netcom.com Subject: I suspect the original art pigments along with the 1Ds Mark IIsensor is part of the issue. What do you think? Tim What is meant by very highest resolution in PS? I will do the exercise of removing the polarizing filter. Also, put the image softly out of focus. I have a UV / IR filter arriving Friday. Let's see if this make a difference. I don't follow you with this sentence: ICC profiles can't solve everything, and actually cause many problem, generally they cause fewer problems than they correct. I custom create all my own profiles. Does that make a difference in your opinion? David B. Miller, Pharm. D. member Millers' Photography L.L.C. 3809 Alabama Street Bellingham, WA 98226 360 739 2826 digitalimaging@dnmillerphoto.com Sent from my MacBook Pro