>>3625635Do lenses made for crop sensors not do what I think they do? I made this to try illustrate what I mean. As I understand it, the speed booster basically shrinks the image (or enlarges the sensor) in order to make the projected light and the sensor more closely match.
Couldn't you just design a FF lens, except the rear elements squeeze down the projection 1.5/2 times, so that no light gets cropped off the edges? Would that not make the focal length and aperture behave like they would on a FF?
I still don't get a lot of the physics around optics so pls no bulli.
