Nikon D700 User Manual page 146

3
Frame a photograph, focus, and shoot.
PI
Non-CPU lenses (pg. 372)
If the maximum aperture of the lens has been
specified using the Non-CPU lens data item in
setup menu (pg. 211) when a non-CPU lens is
attached, the current f-number will be displayed
in the viewfinder and control panel, rounded to
the nearest full stop. Otherwise the aperture
_ ( I j ) _
displays will show only the number of stops (J1F,
with maximum aperture displayed as J1fD) and
the f-number must be read from the lens aperture ring.
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