Quality? A sensor size doesnt affect quality, it affects what you can see and how many photons can be collected in a time period. So the only quality would be t

Quality? A sensor size doesnt affect quality, it affects what you can see and how many photons can be collected in a time period. So the only quality would be that full frame can assist in lower light scenarios without increasing the electrical gain (which causes noise) The point of full frame would be more flexibility at lower focal lengths, and the high correlation to being put inside of more fully featured and sturdier camera bodies with faster I/O. It doesn't have to be that way, it just is since the wafer cost is already higher and already segmenting customers by price, they just give a greater package to the remaining people that would pay more.