Canon EOS 5D MARK III Instruction Manual page 61

Troubleshooting Guide
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
<H> icon displayed, the still photo's image quality may deteriorate. If
the red <_]> icon is displayed, it indicates that the Live View or movie
shooting will soon be terminated automatically (p.215, 241 ).
Movie shooting terminates by itself,
® If the card's writing speed is slow, movie shooting may stop
automatically. When the compression method is set to [IPB], use a CF
card with a reading/writing speed of at least 10 MB per sec., and a SD
card with a reading/writing speed of at least 6 MB per sec. When the
compression method is set to [ALL=I (_-only)], use a CF card with a
reading/writing speed of at least 30 MB per sec., and a SD card with a
reading/writing speed of at least 20 MB per sec. To find out the card's
reading/writing speed, refer to the card manufacturer's Web site (p.217).
® If the movie shooting time reaches 29 min. 59 sec., the movie shooting
will stop automatically.
The ISO speed cannot be set for movie shooting:
® If the shooting mode is <__t/P/Tv/Av/B>, the ISO speed will be set
automatically. In the <M> mode, you can freely set the ISO speed (p.224).
ISO 16000120000125600 cannot be set for movie shooting:
¢_ Under [11_2: ISO speed range], if you set the [ISO speed range]'s
[Maximum] setting to [25600/H], the maximum ISO speed for manual ISO
speed setting will be expanded and then ISO 16000/20000/25600 can be
set. However, since shooting a movie at ISO 16000/20000/256000 may
result in much noise, it is designated as an expanded ISO speed (displayed
as [HI).
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