How can I control ISO in Manual Camera Controls?
Function
▶ ISO: Used to control ISO (sensitivity).
1.When you activate the ISO button, AE-L is enabled. EV cannot be modified when AE-L is activated.
Note: Previous ISO setting will be used when AE-L option is on.
2.EV is adjusted automatically according to current ISO or SS values.
3.If you make changes to ISO or SS value with AE-L ON, disabling AE-L option will revert ISO/SS settings back to AUTO mode values.