Couple of things......
1) Anyone notice the Digic 5+ in the specs?? <------ notice the "+" What's the "+" for compared to the two Digic 5's in the 1Dx?
The 1DX uses two Digic 5+, it's only the P&S and maybe new rebels that will use Digic 5 regular.
2) No 1Dx AF and metering....said this about a dozen times in the past weeks that it would never happen. The processing power isn't here for that, 1Dx needs dedicated Digic 4 for the AF and metering. Lot of folks said it would be otherwise. Reality wins as usual.
But it only has a single digic 5+ so why would there have been no room for a digic 4 for the AF? You were speculating they couldn't fit three digics in there.
And for $3500, what does this have the D800 doesn't for $500 less? It seems to offer less to be honest.
4) On the subject on high ISO IQ performance.....the mk2 goes to 25,600 native...BUT...the 1Dx goes to 51,200 native ISO. If we are to take this as any indication of performance, I had also said the 5D3 would NOT outperform the 1Dx in IQ. This hints that is the case, as I seriously doubt a camera Canon touted as a merging of the 1D and 1Ds lines but with better performance than either would hand the IQ crown to a body costing less than half the price.
If it is worse than 1DX then they are in trouble.
5) 6 fps....not the 6.9fps/7fps we saw in the earlier specs. That one item is a near deal breaker for me and why I'm strongly leaning towards the 1Dx. I have a 5Dmk2 and a 7D, I shoot work across the spectrum....kids...high school...weddings...studio...sports. I need the higher frame rate and 8fps does that for me. I'm not looking to have "a camera for X and a camera for Y and a camera for Z". I just want one and a backup body. The 5D3 does not go far enough for me to do that if I sell the 5D2 and replace it with the 5D3. It comes close, but I'd still be shooting the 7D for the frame rate.
Yes if they only give us 22MP and can't even get us to 7fps, that is wayy weak for $3500. It is not any faster than a gripped D800 can attain. And pumps less MP per second than the few years old 7D actually.
I'd much rather spend $3500 on a 5D3 than $6800 on a 1Dx if I can get 90% of what I need and no deal breakers. My gut tells me the 5D3 will not do this, but I'll wait until it's out and in some folks hands before deciding. I have time, not like I need to buy a body today or in the next 3 months.
My gut is hoping the real specs tonight will end up saying 6.9fps not 6.0fps and that they will mention much better DR and AF that is identical other than for the color tracking help. But I have a bad feeling that won't be the case.