Sometimes part of your picture is unproportionately lighter or darker than the rest of your picture. This may be a sky that's to bright, or a shadow that's too dark, but whatever it is, you don't want it like that. If this happens, burning and dodging is called for. The concept of burning and dodging is that you allow part of your picture to be exposed longer than the rest of it.
- If you want part of it to be darker, expose that part longer
- If you want part of it to be lighter, expose that part for less time
Different implements can be used to accomplish burning and dodging, including your hands, a cut out shape, etc.
- Use a test strip to figure out the different times needed for different parts of the picture.
Whatever you use to block light from touching part of the paper, make sure to wave it back and forth some, to avoid sharp lines of light. For exacmple, if you cover someone's head with your finger, it will not look natural, but like a finger. If you wave your finger back and forth, there will be a gradient that only lightens and darkens the part of it, without any visible shapes.
It's important to not give up when burning and dodging, it can take a few prints before everything is just right. You also may need to expose multiple areas for multiple times.