>>4073424It's the throat not the outer diameter that matters. It's like Leica says, Sony E wasn't designed for full-frame. And I brought that up because you're fudding about crop. The a7 is an user experience nightmare with things stashed away in weird menus instead of being handy.
Image quality isn't a real reason to not go with MFT, a desire for razor-thin depths of field is.
You're recommending a first generation mirrorless to a newbie, that's not a "nice system". The mount is plastic too.