Digital Photo Tip: Use Aperture to Control Depth of Field
One of the most powerful creative tools photographers have at their disposal is choosing which parts of a photo should be sharp and which parts should be soft. This sharp/soft contrast is a very good way to set a subject apart from the background. We call this depth of field because we’re controlling apparent sharpness from close to the lens to the far distance.
In the pair of landscape photos above, one was made at the relatively wide aperture of f/5 (left side of the slider)and the other stopped down to f/16 (right side). Notice the difference in sharpness in the foreground flowers. My focus point was on distant Mount Baker in both versions. These images were made with my lens at 70mm, a short telephoto. Continue reading