Cactus V6 IIs User Manual page 21

ABSOLUTE LIGHT
INTENSITY IN EV
17
16
15
14
13
12
11
10
9
8
7
6
When setting up the absolute power mode, the V6 IIs TX will collect the flash profiles
being selected by the RX units in the same channel and rescale them to the unified
light intensity scale. The following example shows how the model-specific relative
power scales are translated into the absolute power scale.
ABSOLUTE LIGHT
INTENSITY SCALE IN EV
18
17
16
15
14
13
12
11
10
9
8
7
6
When you set all flashes to 11 EV (see italicized section in the above table) in
GUIDE NUMBERS (IN METERS)
+0.0 +0.3
58.0 64.4
41.0 45.5
29.0 32.2
20.5 22.7
14.5 16.1
10.3 11.4
7.2 8.0
5.1 5.7
3.6 4.0
2.6 2.8
1.8 2.0
1.3 1.4
RELATIVE LIGHT INTENSITY SCALE OF 4 FLASHES WITH
DIFFERENT FULL POWER GUIDE NUMBERS
FLASH A FLASH B
GN58
1/2
GN29 1/4
1/2 1/8
1/4 1/16
1/8 1/32
1/16 1/64
1/32 1/128
1/64
1/128
+0.5 +0.7
69.0 73.9
48.8 52.3
34.5 36.9
24.4 26.1
17.2 18.5
12.2 13.0
8.6 9.2
6.1 6.6
4.3 4.6
3.0 3.2
2.1 2.3
1.5 1.6
FLASH C FLASH D
GN41
1/2
GN21 1/4
1/2 1/8
1/4 1/16
1/8 1/32
1/16 1/64
1/32 1/128
1/64
1/128