On my Z6 iii, the
a20: custom monitor shooting display was kind of confusing, since it was different and way more flexible than my old Z6's method.
I wrote up a long post for the DISP options. So many options!
https://www.dpreview.com/forums/thread/4812404#forum-post-68387766
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I really like the virtual horizon "
a18: Virtual horizon type=B" and have it turned on in most of my display views. It's a thin line with tick marks and a center mark. The offset tick marks show the direction to tilt the camera to get to level. The line turns green when it's exactly level, so I can spot it out of the corner of my eye when composing the scene. I like that I can use the horizontal line to fix left-right tilt, even though I'm pitching the camera up or down a little, for composition reasons.
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Blink the DX!
The DX icon can be set to blink in the view, to remind me I'm in DX. (But I still forget that I'm in DX occasionally).
(I had to look this up -- where is it! Oh, here it is, I never would have guessed.)
Menu --> Shooting menu --> Image area -->
DX crop alert = ON.
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Handing to casual users since I use the AF-On=Only setting:
I have
U3 for "
action shooting". It's just two clicks of the mode dial from my usual Aperture mode, so I can switch without looking at the dial. 1/1000 shutter, Shutter priority, etc, etc.
I have
U1 for "
hand to a new person, simplified controls". For those group shots, etc.
A simple data display view, Program mode, Wide area-large, Auto ISO, Single frame release. Half press shutter focusing. Easy!
Still thinking about what to use
U2 for.