If you were going to with one camera, either the Sony Z5 or Sony Z7, which would it be and why?
Surely a big consideration must come down to whether or not you want the CF unit?

It's included with the Z7, but an optional extra with the Z5. Since the price of Z5 plus CF recorder is similar to the Z7, it would seem logical that if you want the unit, buy the Z7, if you just want a tape camera, you can save quite a lot of money by getting a Z5.

Surely a big consideration must come down to whether or not you want the CF unit?

It's included with the Z7, but an optional extra with the Z5. Since the price of Z5 plus CF recorder is similar to the Z7, it would seem logical that if you want the unit, buy the Z7, if you just want a tape camera, you can save quite a lot of money by getting a Z5.

David thanks for the info.
I decided yesterday to go for the Z7. As I definitely want to use the CF unit as well as tape. And the big difference is that I thought long and hard about if I wanted a removable or permanently attached lens. I decided removable for 2 reasons...

The obvious on is the ability to use 35mm glass with it.

The second, is a maintenance one, as if anything ever happened to the lens, like it cracked, I woudl only have to replace a new lens on it as opposed to having the entire camera serviced.