Results from "Focus at different apertures"

These are the images demonstrating how changing the aperture, but leaving the focus in the same place can control the DOF. Lower f/stops mean wider apertures, allowing more light in. Because more light is allowed into the lens and onto the senser this throws more of the image out of focus. Higher f/stops mean smaller apertures, less light and more of the shot in focus. The DOF will get wider or more shallow but the central point that was in focus will remain sharp and in focus. Also higher f/stops mean more gradual blurring and a less harsh looking field of focus.

Image 1 was taken at f/5.6, image 2 at f/22 and image 3 at f/32. The change in DOF, background detail and how quickly or slowly the sharpness of focus blurs away is obvious.