1 person found this helpful
Because it doesn't belong there at all! What's more, no such thing exists in Photoshop.
More in a later post.
To calibrate your camera, you would need to take a picture of the Color Checker. I assume you knew that much.
The calibration itself is an ACR thing that has nothing to do with Photoshop.
Until a few months ago, you would have to download a third party script, like the Tomas Fors/Chromohoilc ACR Calibrator, and run it independently.
That is no longer necessary, because now there is the Adobe DNG Profile Editor (often confusingly referenced as the PE), which is a stand-alone application with several features, like allowing you to generate custom profiles for any camera, and with a rab called simply The Chart Tab (sometimes referred to as the Wizard Chart), which will generate the calibration based on your shot of your Color Checker.
You'll need to download and install (it installs the new profiles automatically) the Adobe Digital Profile Editor:
With Adobe's introduction of the DNG Profile editor, the camera calibration tab has been taken to a new level, and the calibration process takes about 30 minutes less than using the Chromoholics method.
See this well written and illustrated article:
You'll find all kinds of references on the Adobe site and by Googling.
EDIT: Added one more link.
Message was edited by: Ramón G Castañeda