Canon RebelT3i EOS 600D Instruction Manual page 52

___ Fully Automatic Shooting (Scene Intelligent Auto)
® Although it is daylight, the flash popped up.
For a backlit subject, the flash may pop up to help lighten the
subject's dark areas.
® In low light, the built-in flash fired a series of flashes.
Pressing the shutter button halfway may trigger the builtqn flash to
fire a series of flashes to assist autofocusing. TMs is called AF-assist
beam. Its effective range is about 4 meters/13.1 feet.
® Although flash was used, the picture came out dark.
The subject was too far away. The subject should be within 5
meters/16.4 feet from the camera.
® When flash was used, the bottom part of the picture came out
unnaturally dark.
The subject was too close to the camera, and a shadow was created
by the lens barrel. The subject should be at least 1 meted3.3 feet
away from the camera. If a hood has been attached to the lens,
remove it before taking the flash picture.
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