>>2842176Northrup has a video up talking about full frame lenses on APS-C bodies and uses DXO mark to try to break the rules of physics.
The short of it is that he says lenses perform differently depending on the sensor underneath, which is wrong. A lens doesn't change how it collects or focuses light if the sensor changes or is replaced with a film or whatever
Angry photographer put up like 4 videos ripping northrup apart point by point.
If you have some time to burn they're humorous and you can learn some basic shit about lenses in his rebuttal.
