04-28-2022, 08:15 AM
Looking at bthe elements diagram, we can see that Sony moved the elements backwards, which will contribute to smaller lighter lens and better balance when handling.
If all those elements are fixed relatively to each other that's great, however if they are moving for focus/ zoom, many tiny lenses moving that means there's a danger for acquired decentering or at least decrease in optical properties with use, this is the general tendancy with all manufacturers and I'm OK with it, but just speculating