OMG...tell me thiis guy is wrong about micro four thirds

However, (in the condition of equal framing as a result of: post-cropping as described; differing sensor-sizes; or sensor-cropping taking place), for the DOF to be the same, the F-Number of the lens-system(s) used need to be adjusted to be equal to the ratio of the two differing Focal Lengths.

Indeed, an entirely cryptic and wholly incoherent dissertation of a sentence it truly was ...

If it is not understandable to you, then it is (by default) "useless" (to you, as a result). Understood.

Cool. Know that I write what I do because the subjects sometimes interest me (and sometimes interest others). I have no emotional investment in your personal comprehension being a necessity. That is not to say that I do not attempt to express my thoughts coherently.

The "real world" to each individual is the world that their hearts and minds come to "grasp".

Regards to You,

DM...