PureClassA said:
Well that system is now 4 years old and is being replaced with whatever the 1DX2 brings. The 5D4 will also see some variety of it too, which means so will a new 5DS revision. At that point, the 61AF system now in the 5D3 becomes "old hat" (relatively speaking, of course), and could find itself (or some slightly watered down version) in a 6D2 with 5FPS. Remember, that system a dedicated processor on the 1DX. You wouldn't have that on the 6D2 either.
You are correct, the spread/point count for the 1DX and 5D3 is the same but the 1DX has more 'AF-horsepower' in use. But my 5D3 AF system is far more capable of anything I need it to do -- I don't shoot sports/wildlife, rarely shoot in servo, etc. It's a stellar AF system.
My point is this:
nothing about the 6D2 line should be "far more capable of anything I need it to do" -- as a 'gateway' FF rig, users should take wonderful shots with it but often run up to its limits and want something more. Canon does not want the entire prosumer / well-funded enthusiast camp delighted with a 6D2 so much as content.
The 6D line exists for two reasons: selling more EF glass, and building up the stable of future higher-end FF rig purchasers. Enthralling/delighting (not sure of the figure for entry level FF) some 25-30% of the FF market with a rig that does everything they'll ever need is absolutely not in Canon's best interests.
- A