P: How about an adjustment brush for noise reduction?

What's an "OA move"?

Good idea. Until then, try local de-sharpening at -50.

Really, for those of you who don't know:

positive local sharpening values add the local amount to the global for net effect.
whereas negative values mask the global effect in a non-additive fashion, i.e.
sharpening at -50 will mask all sharpening regardless of what the global amount is set at. -1 to -49 partially mask global sharpening, and -51 and greater negative values will result in actual blurring.

I've found local "sharpening" at exactly -50 to be a surprisingly good substitute for local lum. NR - completely unsharpened noise is far less offensive to me. I voted for this FR/Idea, I'm just sayin': in the mean time...

I'd be happy if it would just be able to fade away OA moves selectively.

I second the notion that adjustment brushes should be able to paint in all kinds of image adjustments, not just a selected few.

Feel free to make HSL a separate request.

Couldn't agree more!

The adjustment brush and the gradient tool should also have HSL controls as well ...

Great idea ProDigiPhoto! The adjustment brushes are one area that afford a great opportunity for new features. I'm sure as more users let the team know about what they'd like to see available through the brushes we'll see capabilities expand.