1 pointWhile it's a serious matter, the similarities with all of these ads is quite funny.
1 pointI'm no lens designer, but there may be an issue involving flange depth that prevents them making an EF or PL version. A lot of lenses are made specifically for certain mirrorless mounts that simply cannot be produced for those (dare I say it?) perhaps soon-to-be-legacy systems. The Fuji MK 18-55/50-135 and assorted Sigma and Rokinon/Samyang glass come to mind, for example.
1 pointOh you are right, my bad. I didn't realize it was available in Sony E-mount.