congrats on your 5d3, I like mine too. question though, why do you like the zeiss lenses so much? i ask because when i read the lens review sites, they rank the zeiss lenses as equal to or less than canon or nikon glass.
also, where did the canon 135 go? why wouldn't you keep using it on the new set up? some would say it's the best lens you own.
don't take my questions the wrong way, i'm just trying to learn more and you obviously have significant experience/knowledge, so i'm pick'n your brain a bit, that's all...
Though, I'm not the original poster, I agree with him completely.
The Zeiss lenses are corner to corner sharp on full frame cameras. But for video, it is their focusing ring that truly shines. I was extremely loyal to Canon lenses but thankfully rented the Zeiss 21mm to shoot a film. After using the Zeiss, I loved it so much that I sold the incredible Canon TS-E 90mm to buy a Zeiss 35mm f2.
I did reshoots for the movie on the 35mm Zeiss and everyone has noticed that the footage is even better than the 21mm.
I still use Canon L lenses for photography when I'm not locked down on a tripod, as the manual focus of the Zeiss pretty much negates its sharpness for walkaround photography. But for video, I'm grabbing my Zeiss 35 or renting another Zeiss.