forkball wrote:
I almost opted for the pro version but I cheaped out. I know the one thing the Pro version does is let you verify the profile... how does that work?
The colorimeter reads a pre-defined set of colours (which, unless you change them, are the colors in the Gretag Macbeth ColorChecker). You get a dE value (which you can think of as an error value) for each patch, and an overall dE value for the set. Any colours that are out of gamut are flagged. This is how I know that three of these colours are out of gamut on my laptop.
Other things that Pro gives you are the ability to use D illuminants (so you can calibrate to D65, rather than just 6500K), and the ability to calibrate to a 99 patch set and produce a table based profile, as an alternative to the 35 patch set to produce a curve based profile. The table based profile is likely to be a little more accurate.
However, for many people these are relatively minor points, and Pro is a fair bit more expensive.
David