So our EOS lenses are so cheap partly because they are not parfocal.
The 24-70mm f/2.8 mk2 is "so cheap"? Hmmm...
Yes it is. All our glasses, even the "high-end" ones like our brand new mk.II are definitely cheap lenses compared to movies lenses.
I ain't "cheap", for sure, but take a few minutes to have a look at cine glasses and you'll be glad that the 24-70 II is "only" 2K$.
I never understood why cine lenses are saw awfully expensive. Is it because they are parfocal or. Are there other reasons? I guess resolving power is less of an issue than for still photography (4K is only ~8MP).