Nikon D300 User Manual page 384

II CLS-Compatible Flash Units
The D300 can be used with the following CL5-compatible flash
units: the 5B-800, 5B-600, 5B-400, 5B-R200, and 5U-800.
The 58-800, 58-600, 58-400, and 58-R200
The principal features of these flash units are listed below.
...................
Flash unit
Feature
..
-
.....
58-800 58-600 58-400
58-R200
1
,
. ...•...
Guide
ISO 100 38/125 30/98 21/69 10/32
_.
,
..
_-.-~
..
_
.....
"
-_._._
..
_
..
-~ _.~---~_.~----,- « ~,,~~
No.2
ISO 200 . .
53/175 42/138 30/98 14/49
Auto power zoom
24-105 mm 24-85 mm
_3
_4
Wide panel
•
14 mm, 17 mm 14mm -
-
60
0
down
7 0 down, 90
0
up, 90 0 up, 180
0
(toward lens
Head rotation
90
0 up light axis), 45
0
180
0
left, 90
0
right
left, 90
0
right
up (away from
light axis)
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.......
-
..
-
..................
1. Controlled remotely with built-in flash in commander mode or using optional
58-800 flash unit or 5U-800 wireless 5peedlight commander.
2. m/ft., 20 °C (68
OF),
58-800, 58-600 and 58-400 at 35-mm zoom head position.
3. 27-mm zoom coverage.
4. 24-mm zoom coverage.
5U-800 Wireless 5peedlight Commander
When mounted on a CL5-compatible camera, the 5U-800 can be
used as a commander for remote 5B-800, 5B-600, or 5B-R200 flash
units. The 5U-800 itself is not equipped with a flash.
B
Guide Number
I~I 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.; its range at an aperture of f/5.6 is 38-;-.5.6 or about 6.8
meters (or in feet, 12S-;-.S.6=approximately 23 ft. 7 in.). For each twofold
increase in ISO sensitivity, multiply the Guide Number by the square root
of two (approximately 1.4).
358