Canon EOS Rebel T6 Instruction Manual page 181

General Movie Shooting Cautions
Red <E> Internal Temperature Warning Icon
If the camera's internal temperature increases due to prolonged movie

shooting or under a high ambient temperature, a red <E> icon will
appear.
The red <E> icon indicates that movie shooting will soon be terminated
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automatically. If this happens, you will not be able to shoot again until the
camera's internal temperature decreases. Turn off the power and let the
camera rest for a while.
Shooting a movie at a high temperature for a prolonged period will cause

the <E> icon to appear earlier. When you are not shooting, always turn
off the camera.
Recording and Image Quality
If the attached lens has an Image Stabilizer and you set the Image
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Stabilizer (IS) switch to <1>, the Image Stabilizer will operate at all
times even if you do not press the shutter button halfway. The Image
Stabilizer consumes battery power and may shorten the total movie
shooting time. If you use a tripod or if the Image Stabilizer is not
necessary, it is recommended to set the IS switch to <2>.
The camera's built-in microphone will also pick up camera operation
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sound.
If the brightness changes during autoexposure movie shooting, the

movie may freeze temporarily. In such cases, shoot movies with manual
exposure.
If there is a very bright light source in the image, the bright area may
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appear black on the LCD monitor. The movie will be recorded almost
exactly as it appears on the LCD monitor.
In low light, noise or irregular colors may appear in the image. The movie

will be recorded almost exactly as it appears on the LCD monitor.
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