Owner's Manual

ManualsBrandsNikon ManualsCameras & dronesD700 Kit

Table Of Contents

• Guide Number

To

calculate

the

range

of

the

flash at full power, divide

the

Guide Number

by

the

aperture. For example, at

ISO

100

the

58-800

has

a Guide Number

of

38 m

or

125

ft.

(35

mm

zoom head position); its range at

an

aperture

of

f/5.6

is

38+5.6 or

about

6.8 meters (or in feet, 125+5.6=approximately

23

ft. 7 in.).

For

each

twofold

increase in

150

sensitivity,

multiply

the

Guide

Number by

the

square root

of

two

(approximately

1.4).

379