Canon Speedlite 430EX III-RT Instruction Manual - Page 34

Manual Flash, Set the flash mode to &lt, >., Set the flash output.

Page 34 highlights

q: Manual FlashN You can set the flash output from 1/1 full output to 1/128 power in 1/3step increments. Use a flash meter (commercially available) to determine the required flash output to obtain a correct flash exposure. Setting the camera's shooting mode to or is recommended. 1 Set the flash mode to . Press the button of the cross keys. Turn to select , then press . 2 Set the flash output. Press the button of the cross keys. Turn to set the flash output, then press . Shooting distance Aperture When you press the camera's shutter button halfway, an indication of the shooting distance and the aperture setting are displayed. For guide number details with manual flash, refer to page 101. Without pressing the button of the cross keys, you can directly turn to set the amount of flash output (C.Fn-13/p.84). 34

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34
You can set the flash output from 1/1 full output to 1/128 power in 1/3-
step increments.
Use a flash meter (commercially available) to determine the required
flash output to obtain a correct flash exposure. Setting the camera’s
shooting mode to <
W
> or <
q
> is recommended.
1
Set the flash mode to <
q
>.
Press the <
E
> button of the
<
S
> cross keys.
Turn <
9
> to select <
R
>, then
press <
8
>.
2
Set the flash output.
Press the <
O
> button of the <
S
>
cross keys.
Turn <
9
> to set the flash output,
then press <
8
>.
When you press the camera’s shutter
button halfway, an indication of the
shooting distance and the aperture
setting are displayed.
q
: Manual Flash
N
Shooting distance
Aperture
For guide number details with manual flash, refer to page 101.
Without pressing the <
O
> button of the <
S
> cross keys, you can
directly turn <
9
> to set the amount of flash output (C.Fn-13/p.84).