Assuming you can select the number of frames per second just like 7DII did you try it with 7 or 8 fps?I hope Canon does not prioritize spec over performance and reliability. I picked up a 90d to test and found that it struggled with AF burst shooting. The AF would lock and pretty fast, but wander as the burst hit 7-8 shots. I also saw this on shorter burts, but it ws most prevalent when you got up to around 7-8 shots. I would eventually find it's way back to lock if the burst was long enough. I believe this was processor overload as it was dealing with continuous calculation of theAF combined with writing files to the card. Where I am going with this is that I hope they have enough processing power to provide reliable AF while providing the other camera functions. I would take less MPX/frame rate to have a killer AF tracking system.
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