Canon EOS Rebel T3i 18-135mm IS Lens Kit EOS REBEL T3i / EOS 600D Instruction - Page 283

Troubleshooting Guide The shutter makes two shooting sounds during Live View shooting. If you use flash, the shutter will make two sounds each time you shoot (p.125). During Live View and movie shooting, a white or red icon is displayed. It indicates that the camera's internal temperature is high. If the white icon is displayed, the still photo's image quality might deteriorate. If the red icon is displayed, it indicates that the Live View or movie shooting will soon be terminated automatically (p.139, 163). Movie shooting terminates by itself. If the card's writing speed is slow, movie shooting may stop automatically. Use an SD Speed Class 6 " " or faster card. To find out the card's read/write speed, see the card manufacturer's Web site, etc. The movie shooting will be terminated automatically if the file size reaches 4 GB or if the movie length reaches 29 min. 59 sec. The image flickers or horizontal stripes appear during movie shooting. Flickering, horizontal stripes (noise), or irregular exposures can be caused by fluorescent light, LED bulbs, or other artificial lighting during movie shooting. Also, changes in the exposure (brightness) or color tone might also be recorded. With manual exposures, a slow shutter speed may solve the problem. 283