>>2896755>>2896744And before a diffraction based shitfight breaks out, diffraction still happens in the same amounts at f/16 on any format.
It just becomes less obvious in the context of the whole image, because the jump in scale between formats is usually bigger than the increase in blur from going down one or two more stops.
This is why f/16 on a crop digi sensor is clearly starting to show diffraction softening, but f/45 on a 4x5 looks sharp enough to make your eyes bleed. Lets say that the 3 stops increases diffraction by 8 times, the 4x5 sheet is still about 33 times larger.
Pic related, it's f/32 on 6x9.