Nikon D3S - Manual (Page 366)

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U
View the current camera firmware version.
D
AF Tuning
The camera may be unable to focus at minimum range or at infinity
when AF tuning is applied.
D
Live View (Tripod) Mode
Tuning is not applied to contrast-detect autofocus when Tripod is
selected in live view mode (
0 55).
A
Saved Value
Only one value can be stored for each type of lens. If a teleconverter is
used, separate values can be stored for each combination of lens and
teleconverter.
Firmware Version
G button ➜ B setup menu