Godox AD400Pro Witstro All-in-One Outdoor Flash - Manual (Page 7)

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Flash Mode — M: Manual Flash
The flash output is adjustable from 1/1 full power to 1/256th power in 0.1 stop increments. To obtain a correct flash
exposure, use a hand-held flash meter to determine the required flash output.
Press < MODE > button so 1
that < M > is displayed.
Turn the Select Dial to choose a 2
desired flash output amount.
Press < SET > button again 3
to confirm the setting.
Press < MENU > button to enter C.Fn-SLAVE to choose S2 function, so that this flash can also function as an
optical S2 secondary flash with optical sensor in M manual flash mode. This is useful when cameras have pre-flash
function. With this function, the flash will ignore a single “preflash” from the main flash and will only fire in response
to the second, actual flash from the main unit.
Optical S1 Secondary Unit Setting
In M manual flash mode, press
function as an optical S1 secondary flash with optic sensor. With this function, the flash will fire synchronously when
the main flash fires, the same effect as that by the use of radio triggers. This helps create multiple lighting effects.
Optical S2 Secondary Unit Setting
● S1 and S2 optical triggering is only available in M manual flash mode.
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This flash has three flash modes: TTL, Manual (M), and Multi (Stroboscopic). In TTL mode, the camera and the
flash will work together to calculate the correct exposure for the subject and the background.
* Press Mode Selection Button and three flash modes will display on the LCD panel one by one with each
pressing.
TTL Mode
Press Mode Selection Button to enter TTL mode. The LCD panel will display .
FEC: Flash Exposure Compensation
With FEC function, this flash can adjust from -3 to +3 in 1/3rd stops. It is useful in situations where minor adjusting
of the TTL system is needed based on the environment.
Setting FEC:
Press < SET > Button and 1
flash exposure compensation
amount will be highlighted on
the LCD panel.
Set the flash exposure compensation 2
amount.
● Turn the Select Dial to set the
amount.
● “0.3”means 1/3 step, “0.7”means 2/3
step.
● To cancel the flash exposure
compensation, set the amount to
“+0”.
Press < SET > button again 3
to confirm the setting.
High-Speed Sync
High Speed Sync (FP flash) enables the flash to synchronize with all camera shutter speeds. This is convenient
when you want to use aperture priority for fill-flash portraits.
Please use XPro or X1 series 2
transmitter.
Press High Speed Sync Button 1
so that < > is displayed.
● If you set a shutter speed that is the same as or slower than the camera’s maximum flash sync speed, < >
will not be displayed in the viewfinder.
● With high-speed sync, the faster the shutter speed, the shorter the effective flash range.
● To return to normal flash, press < > button again. Then < > will disappear.
● Multi flash mode cannot be set in high-speed sync mode.
● Over-temperature protection may be activated after 50 consecutive high-speed sync flashes.
Flash Mode — TTL Autoflash
CH 1 TTL
A +0.3
10 %
CH 1 TTL
A +0.3
10 %
CH 1 M
A
10 %
1/
256
+0.1
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