Part of the picture is missing. Something was blocking the lens when the picture was taken. Keep hands, fingers, or other objects away from the lens when taking pictures. Your eye or the picture was not centered correctly in the viewfinder. Leave space around subject when centering picture in viewfinder.
Picture is too dark.
Flash is not on or did not go off. Turn on the flash. See Flash . The subject is too far away for the flash to have an effect. The subject is in front of a bright light.