Canon Speedlite 430EX III-RT - Manual (Page 27)

27
Shooting with a slow shutter speed and second-curtain sync captures
the trajectory of the light sources of a moving subject, such as car lights,
in a natural way. The flash fires right before the exposure finishes
(shutter closes).
1
Press < 8 >.
2
Select the symbol in the
illustration.
Turn < 9 > to select the symbol
shown in the illustration, then press
<
8 >.
3
Select < r >.
Turn < 9 > to select < r >, then
press < 8 >.
r Second-curtain Sync
N
The second-curtain sync works well when the camera’s shooting mode is
set to <
F > (bulb shooting).
When the flash mode is set to < a >, the flash fires twice. The first
flash is a preflash to determine the flash output. It is not a malfunction.
Second-curtain sync is not available during wireless flash shooting.
To return to normal flash shooting, select < 2 > (first-curtain sync) in
step 3. (< 2 > will not be displayed on the LCD panel after you perform
this setting.)