Hot answers tagged calibration
It's got nothing to do with Windows vs. Mac - walk into any office and look at the different monitors on folks' desks. Assuming you're using a standard color scheme (sRGB, etc.) the information will go out to each of those monitors the same way (i.e., white = "ffffff" which is hexidecimal for "turn the red, green, and blue values for that pixel all the way ...
Setting your color space to proof colors sets photoshop to match the right colorspace instead of the monitor-calibrated colorspace. Exporting for that colorspace will force it to display properly. Another option would be to set your monitors to sRGB, but that probably wouldn't be a good idea since they don't match.
From a practical standpoint, I can't think of a reason to be concerned about calibration for web work beyond setting the gamma somewhat accurately to 2.2 and your display to 6500K (sometimes labeled D65). These will allow you to display as much of the sRGB gamut, which is the web standard, as your monitor is capable of. You can do all this without shelling ...
Get a used Spyder, see Amazon to get one for $40. Or if your budget is a bit higher, get one for $75 that'll be a bit better. Most of these solutions will work for a Mac, Linux is a bit trickier...
OK, I admit that it's a late, late, late reply, but there's nothing really tricky about calibrating/profiling devices on Linux. All you need is a recent version of Ubuntu or Fedora. It usually already has GNOME Color Manager. So you just plug your colorimeter in, press a button, and it does everything for you.
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