Canon EOS Rebel SL1 18-55mm IS STM Kit Instruction Manual page 89

Do not hold the camera in the same posture for long periods of times.
Even if the camera does not feel too hot, prolonged contact with the same
body part may cause skin redness, blistering or low-temperature contact
burns. The use of a tripod is recommended for people with circulation
problems or very sensitive skin, or when using the camera in very hot
places.
In Basic Zone modes, the shooting result will be the same as with <A>.
Also, the scene icon for the scene detected by the camera is displayed
on the upper left.
In the <f> and <s> shooting modes, the settings will be the same
as in the <d> mode.
Settable menu functions will differ between Basic Zone modes and
Creative Zone modes.
The ISO speed (100-6400), shutter speed, and aperture are set
automatically.
In Creative Zone modes, you can press the <A> button to lock the
exposure (AE lock). The exposure setting will be displayed for the
number of seconds set with [Z1: Metering timer]. After applying AE
lock during movie shooting, you can cancel it by pressing the <S>
button. (AE lock setting is retained until you press the <S> button.)
In Creative Zone modes, you can hold down the <O> button and turn
the <6> dial to set the exposure compensation.
Pressing the shutter button halfway displays the shutter speed and ISO
speed on the screen's bottom. This is the exposure setting for taking a
still photo (p.90). The exposure setting for movie shooting is not
displayed. Note that the exposure setting for movie shooting may differ
from that for still photo shooting.
If you shoot a movie with autoexposure, the shutter speed and aperture
will not be recorded in the image information (Exif).
Using an EX-series Speedlite (Sold Separately)
Equipped with an LED Light
With autoexposure (modes other than a) movie shooting, the camera
will automatically turn on the Speedlite's LED light under low-light
conditions. For details, refer to the Speedlite's instruction manual.
k Shooting Movies
89