Unable to Set the ISO Speed to "100" (EOS 6D)

Content Id: 8201706700

Solution

As indicated below, if [Highlight tone priority] under the [ ] tab is set to [Enable], the settable ISO speed (image sensor sensitivity) range will be ISO 200-25600 (or up to 12800 for movie shooting). You cannot select "L" (ISO 50), ISO 100/125/160, "H1" (ISO 51200), and "H2" (ISO 102400).

To set the ISO speed to "100", set this custom function to [Disable].

Caution

About Highlight tone priority

With [Enable], the Auto Lighting Optimizer is automatically set to [Disable] and the setting cannot be changed. When [Highlight tone priority] is set to [Disable], the Auto Lighting Optimizer will revert to its original setting.

With [Enable], image noise (graininess and bandings, etc.) may increase slightly more than with [Disable].

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