[admin]

Ah, sorry, I think I can explain it better. What I didn't make clear was how the touch-up brush and the extend brush are kind of the same thing. The touch-up brush allows you to add to areas with an opacity slider. However, when the touchup brush is at 50% opacity it does the same as the extend brush, which is to touchup skin the amount that the sliders are set to. When the opacity is more than 50% it touches up skin more than the sliders say, so you can remove spots even with low slider values. When the opacity is less than 50% it touches up less than the sliders say, so you can have a subtle effect in some areas. You can also build up the amount by going over an area repeatedly. Similarly the restore brush reduces the effect in an area by an amount set by the opacity, and again you can go over an area several times with a low opacity to gradually reduce the effect.

This way if you want to really fine tune an area you can just use the touch up and restore brushes at a low percentage, just like you would have with the extend and cut back brushes. However, the touch-up brush can 'go further' than the extend brush if you wind up the opacity to more than 50%. What you can't do is see the mask at the same time as using the touch-up and restore brushes. Which we think isn't necessary as it wont be a better indication of what your end result looks like than the end result itself.

I hope that better answers your question! Please let me know if I can clarify any point further. It might sound more complex than is necessary, but we have found that 'selecting skin' and 'touching up spots' are more easily grasped tasks than manipulating selections with opacity, for new users.

Tony