You are right. That is the scenario I am referring to.
I have no doubt that 7D2 is the best crop sensor camera today, and a great one too. I am not looking for math (otherwise I would consider a 20MegaPixel camera, with 1200mm Carl Zeiss lens
). I am just looking for the 7D2 owners, who also happen to own a 5D3, to compare their actual tight crops and confirm the advantage. If the the picture quality is not the same at 100% then the effective reach advantage is not 1.6x times. So the question is, what that number is in reality? Is it 1.4x or 1.2x? That would define if it is worth buying this camera as a second body in addition to 5D3, just for the extra reach.I did a 7D vs 5D3 test just like this, and found that adding the 1.4x to the 5D3 made up for the difference. Click my mini-reviews link in my signature and look for the 7D vs 5D3 review. The 7D2, hopefully, retains a bit more detail with the increase in resolution and hopefully altered AA filter.








R5 , 600mm. F4 L IS II , RF 100-500, EF 100 F2.8 L IS macro, 1.4 Tc.III . 
