Leonard Shepherd
Forum Pro
Dual-axis (similar to DSLR cross type AF points) can be particularly advantageous with scenes not recognised by subject detection modes.That is similar to something Thom brought up. Not so much number of AF points. But Thom discussed adding what I think he called dual-axis AF, something which Canon has. I took it that he was talking about what we used to call cross-point AF sensors.One potential benefit of Expeed 8 is an increase in the number of AF points to further improve an already very good AF system.
However, that would be a hardware update. I would put it high up on my list though.
For subject detection, AF needs to identify several points of detail in a subject, often starting with a body, then a face, and then if there is still enough detectable detail an eye.
While Nikon has recently made progress in this direction with the Nikon Z AF existing number of AF points, in theory at least the more AF points there are the better this can be achieved.
I understand the Nikon system now has fewer AF points than the top models from competitors.
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Leonard Shepherd
In lots of ways good photography is similar to learning to play a piano - it takes practice to develop skill in either activity.
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