Either a Version 4 profile and a bug in the software or a bad series of readings.
Probably a bad series of readings by the CM newbie in the mirror. The iSis should be pretty idiot-proof. But is some village missing its idiot?
Earilier I had problems with the iSis getting out of alignment ... off-by-one ... as it moved left to right. That reflected my ignorance of the iSis_Info parameter line. Wow, were those profiles bad. I think I've mostly resolved that problem (using BarCodes now). Also, the supplied TC918 with BarCode was less-than-usable because of file-name mismatch ... that may have been PEBKAC.
When I make a printer profile with PMP5, there are "Preferences" for ver.2 and ver.4 ICC spec profiles. There is also an option for "Optimize image preview in PhotoShop". [Edit]
I looked at this closer, and it appears to apply to profiles for scanners and cameras:
"Rendering intents in digital camera and scanner profiles[/Edit]
Does CS4/5+ expect ver.2 or ver.4 profiles? How about LR 4.3? What would be the correct PMP5 "Preferences" for LR4.x and CS4/5+? Or does it not really matter?
I've tried all four combinations of the PMP5 Preferences above,
- but that doesn't seem to make any difference
- as far as the White background of test-prints turning gray with all CS5 Print-Previews and prints using Relative-Colormetric intent
- and most Print-Previews and prints using Perceptual intent.
- I've gotten maybe 10% of the profiles I've made to work well with Perceptual Intent
- white background stays white and colors of the prints actually look good.
- I've tried to carefully keep track of just how I've made test-chart prints and done the measurement scans, but getting semi-random profiles.
I'm part way through the "Color Management for Photographers" book. It has details for CS and CS2, and I'm trying to translate to LR4/CS4/CS5.
Also, I'm shifting over to a printer-profile workflow using ColorPort and then maybe ArgyllCms to see if the profiles come out better.