In my opinion, and it's a sad one, Sony will nevere have the line-up canon has,
300,400,500mm lenses, L lenses, etc.
offcourse Sony has the Carl Zeiss lenses (4 to be exact) compared to 15 l lenses.
I don't think Sony will invest the budget for making new lenses, they even ended production
of the full frame cameras, They now have the translucent mirror technology.
I had one in my hands, and to be honest, it looks like a game console, you don't look through the
lens anymore when you look in the viewfinder, but at a small lcd screen, that was the reason
I sold my DSC-H5 bridge camera and went to DSLR.