Movie Shooting - Canon EOS 5D Mark III Instruction Manual

Troubleshooting Guide
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 (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.219).
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 <A/d/s/f/F>, the ISO speed will be set
automatically. In the <a> mode, you can freely set the ISO speed (p.226).
ISO 16000/20000/25600 cannot be set for movie shooting.
Under [z2: 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 [H]).
The manually set ISO speed changes when switching to

movie shooting.

If you shoot a movie when [Maximum: 25600] is set with [ISO speed range]
and ISO speed is set to ISO 16000/20000/25600, the ISO speed will switch to
ISO12800 (during movie shooting with manual exposure). Even if you switch
back to still photo shooting, the ISO speed will not revert to the original setting.
If you shoot a movie when 1. L (50) or 2. H1 (51200)/H2 (102400) is set, the
ISO speed setting will switch to 1. ISO 100 or 2. H (25600) respectively
(during movie shooting with manual exposure). Even if you switch back to
still photo shooting, the ISO speed will not revert to the original setting.
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