My reply was to your post which I have pasted below, in which you claimed that the stacked sensor design was superior for “tracking a moving subject”You are still talking about AF, tracking, acquisition, and even subject recognition. But the stacked sensor is a OVF to EVF type change. The R3 is better than the R5 because that stacked sensor lets you see the subject closer to real time. If we take that a OVF has 0ms latency because it is just a mirror and glass, you are seeing in realtime what is happening. The R5 (regardless of the 60 or 120hz) is say 300ms behind the real world. Well a stacked sensor could be 30ms behind the real world and could eventually hit 1-2ms in future versions.
I naturally assumed that you were referring to *AF tracking*, which is exactly what I addressed in my reply.…
Perhaps what you meant, was *visually tracking* the subject in the EVF, where the minimal time lag of a stacked sensor clearly makes a difference?
For tracking subjects a moving subject it is. There is more to a sensor than megapixels and more to a lens than its focal length. The A1 is in a different class to the R5, and the R3 and Z9 sit on their own at the top.