[thxbb12]

So what you are saying is that ISO 100 film at f4 gets exposed the same as ISO 400 film at f4.

Because according to you, all that matters is how much light falls on a square millimeter.

 

Ugh.. It's got nothing to do with film.

 

And not sure why you are starting to talk about the quality of the lens again, apparently you do not read what I have said about that. Understanding lens equivalency (in this context) is not about which lens is the sharpest. Or fastest focussing. Or something like that.

 

The whole point was that MFT allows you to have a handholdable (as in "one that a normal person can carry around") 600mm equivalent which is not something possible with FF.