Nikon D300 Complete Manual page 586

Choose non-CPU lens number
Auto bracketing
Dynamic AF area
None
Recommendations:
1. The options here are the same as for Custom Setting #F4,
so read my recommendations there.
2. Whatever you set, don't set it without first considering
what you'll be setting for Custom Settings #F4 and #F5.
These three options have overlapping choices, so you
really need to consider them all as a group.
Thom Hogan's Complete Guide to the Nikon D300
Holding the AE-L/AF-L
button and turning the Rear
Command dial sets the non-CPU lens
number
Holding the AE-L/AF-L button and
turning the Command dials sets
bracketing (see "Exposure Bracketing"
on page <299>)
Holding the AE-L/AF-L button and
turning the Rear Command dial sets
the Dynamic Autofocus area size
Holding the AE-L/AF-L button and
turning the Command dials does
nothing (but pressing the button by
itself may do something) [default]
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