Understood. But if I can shoot a 1Ds 3 with Zeiss for street, you certainly can too.
Heck! The Leica M9 is the perfect tool for it. 

Maybe with the 1ds3... But try it with the 7d at 2.8. Cannot be done accurately and reliably. Limitations of the 7d viewfinder. My understanding, the 5d3 viewfinder is like the 7d....not good new for manual focus.


