While some of the least expensive digital cameras have only automatic focus, meaning the camera does all the work on bringing your subject into the best possible focus, most SLR digitals offer three different focus modes: manual, single auto focus and continuous auto focus. All three of these will be addressed here. With manual focus, the camera stays out of the focus equation and y... https://www.youtube.com/watch?v=p-8HHIL6HbE