I do have the 5D MK III and my great lenses. I am VERY happy with it.
Now for travel I am contemplating getting a spare body.
So if I were to buy a 6D or 5D2 it would not fit in the housing if my 5DIII breaks. So I would have to get a spare 5DIII body (Costly)
Or if the worst thing happens and the 5D3 breaks, send it off to the Locale Canon repair center whereever I am traveling in and wait until its repaired. In the meantime use a phone (no underwater photos) or buy a cheap PS camera while I wait for the repair.
Anyone has experience with it and how do you approach it? Thanks
I'm in the same situation, but don't have a great answer. I'm thinking that a small crop sensor camera might be the way to go as a secondary body and housing, will also give me more flexibility for macro shooting. I've briefly looked at the eos-m camera but am somewhat underwhelmed with it.
I've still got my 7D body and housing as backup, but its just as heavy as the 5D3 so makes for traveling with both a pain. I'll probably wait and see what happens with the 7D2 and go from there.
No great answer from me I'm afraid, but maybe some food for thought.