camera; slr; photography; photo; macro; shutter; professional; dial; mode; program; circle; auto; digital; focus; photographic; portrait; shot; viewfinder; closeup; manual; photographer; wheel; lens; dslr; aperture; scene; iso; priority; exposure; selection; speed; ring; film; autofocus; button; settings; switch; object; letters; automatic; landscape; icons; technology; optical; control; equipment