WF said:
These are Canon photopaper-specific profiles, which are very good for saving
time, paper, ink (money, in short).
Try this link
http://photography-on-the.net/forum/showthread.php?t=29530 and
download the PDF file that's mentioned in it, or go directly to the file
http://homepage.mac.com/renard/ls/Canon_ICC_Profile_Guide.pdf
It gives very clear instructions how to use them.
I think the Canon ICC Profiles Guide is a real piece of crap. Terms are
not explained. In the first section they tell us they are going to show
us how to print using ICC profiles, then they check Use Printer Color
Management. In the second section, which is called Printing Using Intent
to Suit Requirements, they are apparently now using the ICC profiles,
but they use this confusing title. In using printer color management,
you CHECK the "Enable ICM" box (!) and in using ICC profiles, you DO NOT
CHECK the "Enable ICM" box! Fine, but if you are not told this, it is
completely illogical, and I believe just the opposite of the way Epson
does it.
The Set Print Type (to NONE) is never explained. What the hell does that
mean or do?
Then there are the profiles themselves. They tell us that MP stands for
matte paper, PR stands for Photo Paper Pro, and SP is Photo Paper Plus
glossy. Then they say that the number (PR1, PR3, SP2, SP4) stands for
the quality - without telling us which numbers are the higher quality,
or why we would select anything but the highest quality. I have derived
that the lower number (1) is the higher quality from looking at the Set
Print Quality slider in the Canon driver, you notice that the range goes
from 1 to 5, and 5 is "Fast" and 1 is "Fine," which I assume means that
1 is the highest quality.
My biggest question is why would we use the Canon profiles and do color
management, if those profiles are the same ones the printer is using in
letting it do all the color management. It makes FAR more sense to send
away for a dedicated profile from Cathy's or somewhere than to use these
unknown profiles. You might as well just use printer color management.
Gary Eickmeier