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If you don’t have much time to read the whole user manual, we

advise you to read this section.

1.Please avoid the excessive use of maximum power output, which can

eﬀectively extend the service life of the product. (It is recommended that

the ﬂash should be idle for more than 10 minutes when overheat

protection is activated.)

2.Press the [MODE] button for seconds to enter trigger mode selection.

Turn the [DIAL] to select a trigger mode.

3.Press the [MODE] button to switch ﬂash modes between TTL/M/Multi/

Gr. (Gr mode only works when the ﬂash is set as radio wireless master

unit.)

4.Turn the [DIAL] to adjust the selected value and press the [SET] button

to save the settings.

5.Press the [Zm/C.Fn] button to enter focal length setting. Press the

[Zm/C.Fn] button for seconds to enter custom function setting.

6.The function buttons 1 to 4 vary according to the current ﬂash status.

Function buttons can be used to operate the functions displayed on the

screen above the corresponding button. For more details, please read

the subsequent section.

7.Press the function button 2 and 3 at the same time for seconds, and

the settings of the ﬂash can be reverted to their defaults.

8.Turn the ﬂash OFF, press the [MODE] button for seconds to turn the

ﬂash on and enter the upgrade interface.

Quick Start

Yongnuo YN320EX User Manual

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