All of a sudden, I need to come up with an ICC profile for backlit media –
First, suppose I use Chartread –e. Can I read in strips with the i1pro? Or do I
need to read in Patch mode?
Second, choice of lightbox. Is it “better” to measure with the media sitting on
a fluorescent light source? Or is it better to measure with an incandescent
light source? Why not LED light source?
I was thinking of using this kind of lightbox:
I remember reading that the issue of light source “color temperature” was not
important. How is that?
Best / Roger
From: argyllcms-bounce@xxxxxxxxxxxxx [mailto:argyllcms-bounce@xxxxxxxxxxxxx] On
Behalf Of Kamil Tresnak
Sent: Thursday, November 23, 2017 5:22 PM
Subject: [argyllcms] Re: Profiling backlit film with Monitor
Thanks for sharing, Alexey!
In the past I used LCD monitor without matrix (it was damaged, but lamp itself
was good, so I just remove the matrix and used it as a light table). But the
uniformity and stability is not very good, so it was necessary to calibrate
i1Pro every few patches.
Now I'm using iPad (!) and found it much more stable (auto-brightness=off).
But calibration every 10-15 patches is also highly desirable. It's necessary to
get really repeatable and reliable values.
I'm calibrating device during measurements in two different ways:
1. I'm making ArgyllCMS native calibration every 75 patches.
2. I'm measuring white patch every 15 patches and making linear spectral
correction afterwords in EXCEL.
Alexey Gribunin, UNIT Color Technologies, Moscow, Russia.