M Vers wrote:
There are going to be some tough tradeoffs if people are expecting a FF body from Canon at or under 2K. Just look at the 5DII--great sensor, great size, not so great AF. Again offering a lot in one department and completely limiting another. FWIW I can't see Canon releasing another line of FF bodies, specifically a cheaper line and if they do you can bet it will be underwhelming.
I honestly don't think that the AF system was a cost compromise, as much as it was a tactic employed by the very risk-averse Canon to avoid cannibalism. As discussed here before, Canon could have used the 1d2/1ds2 AF system without too much incremental cost- after all any AF system, including the original 5D's, would have been brand new to the 5D mark II, and would have required a brand new mechanisms for installation, new firmware coding, AF sensor implementation, and rigorous testing.