I want to fix some areas of an image that need to be a bit more sharp. I select the Adjustment Brush and place a pin in the area I want, then O adjust the Sharpness slider above the Noise slider. I click Done. I select the Adjustment Brush again and place another pin in a different area, and make an adjustment to the slider.
1. Is this the correct way to use the Adjustment Brush?
2. Do I ideally want a separate pin for each and every adjustment? Example, if I place one pin on a face and use the sharpness slider, though I also want to adjust saturation in the same area, should I use a separate pin for that?
3. How much of an area does each pin cover?