Canon Speedlite 430EX III-RT User Manual
Page 48
48
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Radio Transmission Wireless Flash Shooting
Shooting in a Different Flash Mode Set for Each Group
Wireless shooting using radio transmission has advantages over wireless
shooting using optical transmission, such as being less affected by
obstacles, and not having to point the slave unit’s wireless sensor toward
the master unit. The main functional differences are as follows.
*1-3: Some restrictions apply depending on the camera used.
(See p.49 and 63 for *1, p.65 for *2, and p.66 for *3.)
Difference between Radio Transmission and Optical Transmission
Function
Radio Transmission Optical Transmission
Transmission distance
Approx. 30 m/98.4 ft.
Approx. 15 m/49.2 ft.
(indoors)
Firing group control
Up to 5 groups*
1
(A, B, C, D, E)
Up to 3 groups
(A, B, C)
Slave unit control
Up to 15 units
No restriction
Channel
Auto, Ch. 1 - 15
Ch. 1 - 4
Wireless radio ID
0000-9999
–
Slave
operations
Test flash firing
k
–
Modeling flash
k
*
2
–
Release
k
*
3
–
A
B
C
E
D
Manual flash
Manual flash
E-TTL II
E-TTL II
Manual flash
* The flash mode settings are indicated only as an example.
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