Nikon SB-27 - Manual (Page 16)

Selecting a measurement system
(meters/feet)
16
Set the flash shooting distance measurement system in the
LCD panel to either meters (m) or feet (ft).
—The system is preset to meters (m) when shipped from the factory.
TTL
A
M
M
ZOOM
ISO
mm
f t m
60
30
15
7
4
2
18
9
4
2
1
0.6
Set the flash mode selector from “OFF” to “M” or “AUTO” while
holding down the “F” button and select the desired indication (m or ft).
—If you replace the batteries with the SB-27's power ON, the measurement
system returns to the default meters (m) system, even if feet (ft) had been
previously set.