how can smartphones have 108MP cameras, yet conventional cameras achieve better results with apparently less MP

Question

I get that more MP is better ends up being pure marketing. However I don’t understand why all cameras don’t bring 108 MP sensors or whatever. I’m confused.

In: 16

Answer 1

Image quality comes down very heavily to optics, and dedicated cameras have far more powerful optics than phones. A major factor of optics is size. Cell phone lenses are nowhere near big enough to do what a dedicated camera lens can.