I notice that some photographers sell Photoshop "brushes". What exactly are they, and when would I use them? I expect that a brush has some kind of image to use as a pattern, but what use is that?
A lot of praise goes to Arctic Butterfly when doing DIY sensor cleaning. However are there cheaper solution to brush off dust by using other non-sensor cleaning specific brushes? Most high quality ...
I wonder if there is any such tool in "PhotoImpact 8" that would be somewhat similar to a brush that, if I move it over a certain area of my image (picture), would change that area's brightness. If ...