Canon EOS Rebel T5i 18-55mm IS STM Lens Kit 手册

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When you shoot at high ISO speeds, noise (such as dots of light and 
banding) may become noticeable.

 

Shooting in high temperatures may cause noise and irregular colors in 
the image.

 

If Live View shooting is used continuously for a long period, the camera’s 
internal temperature may rise, and image quality may deteriorate. Stop 
Live View shooting when not shooting images.

 

If you shoot a long exposure while the camera’s internal temperature is 
high, image quality may deteriorate. Stop Live View shooting and wait a 
few minutes before shooting again.

White <s> and Red <E> Internal Temperature Warning

 

If the camera’s internal temperature increases due to prolonged Live 
View shooting or under a high ambient temperature, a white icon <s> 
will appear. If you continue shooting while this icon is displayed, the 
image quality of still photos may deteriorate. It is recommended to 
temporarily exit Live View shooting and allow the camera to cool down 
before shooting again.

 

If the camera’s internal temperature further increases while the white 
icon <s> is displayed, a red icon <E> will start blinking. This blinking 
icon indicates that the Live View shooting will soon stop 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.

 

Using Live View shooting at a high temperature for a prolonged period 
will cause the <s> and <E> icons to appear earlier. When you are not 
shooting, turn off the camera.

 

If the camera’s internal temperature is high, the image quality of high ISO 
speed images or long exposures may be degraded even before the white 
icon <s> is displayed.