GH2 i.dynamic behavior: works good with lumix lens but not with nikon/canon fd lenses.

[Apefos Adapter]

Did some tests with i.dynamic and found it works great to bring up exposure in shadows areas in contrast scenes.

But this just works with the lumix lens.

When i try it with a nikon or canon fd lens the feature does not work properly. It just get enabled when there is some amount of overexposure in the image. So completely unusable with legacy lenses.