Will a FF 45MP global shutter sensor be difference between the R3 and the R1?
About 3 years ago Canon published a patent for a sensor with two charge buckets per pixel that could be swapped between instanteously and read out individually.
This allows:
1) global shutter: just switch the sensor to the unused bucket and read out the full buckets. Loses about 1 stop DR.
2) HDR: flicker between the two sensors, but give the A sensor 1/1024 the time of the B sensor. A will be -10 stops exposure. Expose B for the dark things in a scene but get an extra 10 stops highlight detail. For instance expose a real estate shot but be able to fully recover the daylight scene out the window. The patent didn't describe the flicker amount but I cranked the numbers and it seemed that you could get a continuous trace from a pretty fast-moving car with this. Obviously there'd be some speed where the A sensor images would become a discontinuous line of dots, but for most shots it'd work great.
3) ND: just flicker whatever percentage you want.
I am half-expecting this to be in the R1. That would make it a real game-changer in a way that a mere 100MP wouldn't necessarily be.