Tonal adjustment
When using the camera raw 6.2 to adjust the tone here are some notes on what the function does.
Exposure:
Recovery: Moves the highlight parts of the image to retrieve overexposured areas.
Fill light: Fills in the shadow levels like a fill flash. It moves the shadow parts towards white.
Blacks: Moves only the shadow part of the histogram. To introduce more darker tones to the image increase the blacks value.
Brightness: Moves the midtones. Similar to gamma.
Contrast: Spreads the values apart and thus introduces more contrast to the image
http://sv.wikipedia.org/wiki/Ansel_Adams
Keyboard shortcuts
The keyboard shortcut to change brush size is [ or ] and the feather is shift + [ or ]. Since I am a swede and living in sweden I consequently got a swedish keyboard to be able to write the å, ä and ö letter of the swedish alphabet. The bracket key is not placed on the same place on an english keyboard as a swedish and it drove me a little crazy at first, since I couldn´t get the shortcut to work. To use the brush size shortcut on a swedish keyboard press “å” key for “[" and the key to the right of the "å" key to type "]“.
This image is an english keyboard.

Reset the changes made
Press alt in camera raw to switch the cancel button to a reset button.