Canon EOS-1D C - Manual (Page 24)

24
k Shooting Movies
ISO speed during manual-exposure shooting
ISO 400 is set by default.
You can set the ISO speed manually within ISO 100 - 25600 in 1/3-
stop increments. Under [z2: ISO speed settings], if [ISO speed
range]’s [Maximum] is set to [51200/H], the manual ISO speed
setting range’s maximum will be expanded to H (equivalent to ISO
51200). Note that even if you set [Maximum] to [51200], the
maximum will remain at ISO 25600 and not be expanded. Setting
[Maximum] to [H1 (102400)] or [H2 (204800)] will enable the setting
range to be expanded up to ISO 102400/204800.
With [Auto] (A), the ISO speed will be set automatically within
ISO 100 - 25600.
If [z2: Highlight tone priority] is set to [Enable] (zp.154), you
can set the ISO speed within ISO 200 - 25600 (depending on the
[ISO speed range] setting).
Under [z2: ISO speed settings], [Auto ISO range] and [Min.
shutter spd.] cannot be set (zp.131, 132) for movie shooting.