The Custom setups of my Z9's differ in the finer details between the 3 pairs of Shooting Banks: Wildlife, Action, Macro/Landscapes. A high proportion of the menu settings are set Once, but the Autofocus custom settings are different. It pays off to experiment in order to optimize the setup(s) that works best for you and your subjects, in local conditions.
As we know, there are many different ways the photographer can Customize their Z9, and/or Z8. Compared to other Mirrorless cameras, and also the advanced DSLRs (D5 Triumvirate) - D6 being one exception - the main differences have proven to be the Custom Area AF modes and 3D Tracking - all empowered by Subject Recognition.
More than any other, it's these primary features that stand out, in differentiating how to optimize & customize the Z9 Autofocus system. IME, these are the primary settings where it's paid off experimenting to refine how to handover between 3D Tracking (Auto AF sometimes) with the pair of Custom Area modes [edit: and now I plan to test out the method of
@EricBowles - use a Dynamic mode in place of Recall Focus position
].
And I'm another one of the Z9 owners who has replaced Single-point mode with CA 1*1..... this was a big lesson over a year ago, when FW 2.0 landed (April 2022).
The processes underlying the HandOver Focus method - leveraging Focus Persistence - are discussed in detail in this thread and linked information :
I want to confirm this. (in Ver. 3.10) BBF will ONLY override/hand over from the shutter button. When pressing any FN buttons set to a different AF Area mode or AF Area mode + AF ON, Pressing BBF or half-press shutter will NOT override the FN button. In other words, the way to hand it over is...
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