Black and White in Photoshop II - Black and White in Photoshop CS4 and Photoshop Lightroom - page 165

3. Simply slide the Balance control back or forth to equalize the image to suit
your taste.
Step 6: Vignetting
My image is close to where I'd like it to be, I have a clean crop, nice contrast,
a sepia-toned black and white conversion that snaps - it just needs one more
thing. Vignetting is a way to dodge or burn just the corners of an image, and
doing so correctly brings the center of the image into even more prominent
focus.
1. Within the Lens Corrections palette, under “Lens Vignetting”, move the
Amount slider (to the right in this case to introduce mood).
2. To control the range of the vignette, move the Midpoint slider.
3. The new post-crop vignette controls allow for the l exibility of cropping
or changing a crop at any time, but they also give us feathering and
roundness controls.