Nikon D3X User Manual page 90

The Fn Button
The image area can be selected
by pressing the Fn button and
rotating the main or sub-
command dial until the desired
crop is displayed in the viewfinder
(pg. 62). This operation (the
Fn button Main command
default option for the Fn button
d
dial
and command dials; pg. 336) can
not be performed while a
multiple exposure is being
recorded (pg. 209).
The option currently selected for image area
can be viewed by pressing the Fn button to
display the image area in the top control
panel or shooting information display. FX
format is displayed as "36 × 24", DX format as
"24 × 16", and 5 : 4 as "30 × 24".
A
Information Display (pg. 14)
The current image area selection can be viewed
by pressing the R button to display shooting
information in the monitor. c is displayed when
[FX format (36 × 24)] is selected, a when [DX
format (24 × 16)] is selected, and b when [5 : 4
(30 × 24)] is selected.
64