[Brightcolours]

Or the improved IQ, which is often cited as the biggest benefit of FF

But you do not just get "improved IQ" just by using an FF sensor. If you do all things similar, you end up with pretty much the same "IQ".

. And for most situations, "DOF control" should probably be adequate with the 55/1.8 lens (or the long end of a 70-200/4). Fail that, there are always adapted lenses, which is why there's a new LA-EA4 adapter being released now.

The same DOF control then can be had at APS-C too, that was my point. And of course, with adapters you can get other lenses to mount. My post was not about that. And I do not need an adapter on the 6D to mount EOS lenses....