Canon Speedlite 430EX III-RT - Manual (Page 49)

49
' Radio Transmission Wireless Flash Shooting
When performing radio transmission wireless flash shooting, function
restrictions may apply, depending on the camera used.
EOS DIGITAL cameras released in and after 2012
When using the flash with a camera such as the EOS-1D X, you can
shoot without any restrictions on the flash mode and flash sync
speed, etc.
* Although EOS REBEL T5/1200D was released after 2012, restrictions on
functions are the same as with EOS DIGITAL cameras released up to 2011.
(See the following explanation for details.)
EOS cameras compatible with E-TTL and released up to 2011
When using the flash with the cameras listed below, radio
transmission wireless shooting using E-TTL autoflash is not
possible.
Shoot with the manual flash (p.62) or optical transmission
wireless slave function (p.71).
EOS-1Ds, EOS-1D, EOS-1V, EOS-3, EOS Elan II/Elan II E/50/50E, EOS
REBEL 2000/300, EOS REBEL G/500N, EOS REBEL XS N/REBEL G II/
3000N/66, EOS IX, EOS IX Lite/IX7
Also, when using the flash with an EOS DIGITAL camera or EOS
film camera released up to 2011, the following restrictions apply.
1. The flash sync speed is 1 stop slower.
Check the flash sync speed (X = 1/*** sec.) of your camera and
shoot with a shutter speed up to 1 stop slower than the flash sync
speed (Example: When X = 1/250 sec., radio transmission
wireless shooting is possible from 1/125 sec. to 30 sec.).
When you set the shutter speed 1 stop slower than the flash sync
speed, the <
k > warning icon will disappear.
2. High-speed sync shooting is not possible.
3. Group flash is not possible (p.63) .
4. Modeling flash from the slave unit (p.65) as well as remote
release from the slave unit (p.66) are not possible.
5. The camera cannot be used for a “slave camera unit” during
linked shooting
(p.67) .
The camera can only be used for a “master camera unit”.
Restrictions on Functions Depending on the Camera Used