Difference between curves at PS and Camera Raw

[sincere]

Is it me or are these things different at PS and Camera raw? From what i see at PS i can pick each channel out of RGB wich i cant do at Camera Raw. School me please.

 

[ksmattfish]

You got it. Tweaking the curve in Camera Raw just manipulates tones. In Adobe PS you can tweak the individual color channels as well as tones.