I assume there will come a day when depth of field becomes a controlled variable rather than pot luck. This image was taken from a close point of view – about 18 inches from the main subject which was as close as my Nikon 18-55 would allow me to get whilst maintaining auto-focus. How focused would I want the background bicycles to be? And what about the focus on the pebbles? I hope with practice, these variables will become purposeful.