[JJ_SO]

​Lets say you have a 20mp MFT sensor, and a 20mp FF sensor. Lets say you will make prints the same size, or look at 100% pixel size on a screen. Lets assume lenses of equal quality.

Lets assume you would see diffraction softening kick in at f8 for the 20mp FF sensor. You then WILL see diffraction softening kick in at f4 for the 20mp MFT sensor.

You scale up two things and the third and fourth you leave equal, You don't define equal quality, simply because there is no - machinery will not polish a µ 4/3 2 times more precise or mount it 2 times more precise.

 

Great. So much for your "scientific" experiments. Of this flock of assumptions, you will not see two or three coming together in reality fulfilling the condition of "exactly scaled". So, fantasizing about theoretically perfectly scaled conditions doesn't lead to any single better picture. Therefore posts like this have no value in reality. With your many assumptions you don't do science a big favour. In fact meeting a badly tempered scientists who read your posts could end up painful.

 

Not for the scientist.