You won't gonna notice the difference, because ML only works on your LCD screen.
No chance of getting it work in the viewfinder.
+ If you set for example ISO 640 on the ML, it will work, it just'll display it as ISO 800.
No chance of getting it work in the viewfinder.
+ If you set for example ISO 640 on the ML, it will work, it just'll display it as ISO 800.