You Must Remember This

Minimum shutter speed = focal length of lens

Shorter focal length lens = more depth of field

Use A or Av mode when you want to manually set the aperture to control depth of field

Use S or Tv mode when you want to manually set the shutter speed to stop motion

Shutter speed of B or Bulb = shutter open as long as you hold down the button (use a tripod).

Use fill-in flash exposure adjustment of minus 2/3 of an f-stop when shooting portraits outside.

Print this page and cut out the above quick reference guide to keep in your camera bag.