It is possible, and that's how broadcast lenses implement it. Sony even sells a 500$ super35 lens that's parfocal (the SELP18105G which was the kit lens for the FS5).
The same compensation behaviour can be done in reverse to prevent focus breathing (and yes, that 500$ lens does that, too).
Sadly outside of Sony's 18-105G, 18-110G and 28-135G, most lenses for mirrorless or cinema cameras are designed to be manual and don't even attempt it.
The same compensation behaviour can be done in reverse to prevent focus breathing (and yes, that 500$ lens does that, too).
Sadly outside of Sony's 18-105G, 18-110G and 28-135G, most lenses for mirrorless or cinema cameras are designed to be manual and don't even attempt it.