Depth of Field

Hello, this is Robert and these are my depth of field photos the shallowest at the bottom and the depth becomes greater as you go up. The bottom photo was taken at an F-stop of 3.2, a shutter speed of 3", at a distance of three feet from the controller, and an ISO of 80. The midle photo was taken at an f-stop of 8, a shutter speed of four seconds, an ISO of 80 at 3 feet away. The top photo has the greatest depth of field; it had an f-stop of 8, a 6" shutter speed, an ISO of 80, and it was taken at a distance of five feet from the controller.