by Julieanne Kost
When working with the Point Curve (in the Tone Curve panel in Lightroom 4), it can be difficult to set a point on the curve and just nudge it up or down ever-so-slightly. Instead, use the Targeted Adjustment Tool to click on the tone that needs to be changed in the image area .This will set a point on the curve. Then, use the arrow keys to nudge the point into place. Add the shift key to move the point in greater increments.