Hey Frantz --
My point was that there are accessories out there -- rod systems, viewfinder extenders, separate monitors etc. that all improve the ergonomics -- elongate the DSLR so to speak. This pool of accessories is growing fast. To wit, the RED 'camera' is basically a small, heavy rectangular box -- nothing ergonomic about it. To the support rods above and below, you attach a shoulder pad, handles, hard drive, follow focus, etc. I shot all over the world with an Aaton Super16mm camera -- great ergonomics, cut out for the shoulder, light, quiet, great viewfinder -- but what we're seeing is that the camera itself is becoming a modular 'brain'. The right accessories make it ergonomic.
Same is true of the smaller dedicated pro or near pro cams up to 10K like the Sony EX1, Panasonic HVX200, Canon XL H2 (think that's the model #). Too many buttons on too small an elongated body, no great way to hold them steady, however an ecosystem of accessories improves things somewhat. The bigger stuff is better to hold, but again, when you're up on tripod w/the right support rigs -- all can be easily operated. Navigating menus primarily designed for still can be a bit of a pain though, but that's separate from body type. And we're seeing the DSLRs take video more seriously, so the interfaces are getting more motion capture friendly. 10K cameras don't touch the IQ of the best DSLRs because of their smaller chips and inferior glass.
Do I still prefer a motion picture cam for shooting movies/spots? Sure, but it can be hard to justify from an IQ standpoint. And part of that is me just being old school and thinking of a camera needing its own shape. I teach an advanced production class once a week at the School of Visual Arts in NYC -- nearly all my students prefer the DSLRs to the sub 15K Canons and Sonys.
Canon, as noted, is working the low end of pro, or high end consumer dedicated motion picture cams. Whether they have the resources or interest to go upscale is a question. Nikon lacks the resources, but will continue to improve the vid on their DSLRs as the market demands. The big players in the pro world are Sony, Panasonic, Arri and Panavision, and maybe RED, w/a few others as may niche players.
I think the real point is that once RED was able to get full frame 1080p still data out of the cam at 30fps -- a processing bandwidth/codec issue primarily, and others have followed -- the technologies of still and motion merged in a fundamental way. Who knows where it all goes, except that it'll keep getting better/cheaper.
