Are you sure cameras don’t do that? I honestly do not know. They definitely do for still photos—Nikon has had chromatic aberration correction and lens distorti

Are you sure cameras don’t do that? I honestly do not know. They definitely do for still photos—Nikon has had chromatic aberration correction and lens distortion correction for quite a while, and it’s keyed to individual lenses. If they aren’t doing that in video, I suspect it’s a pure horsepower limitation. Reading the data off the sensor, and applying the corrections in real-time while writing to card may be too computationally intensive or bandwidth-limited.