Canon Macro Ring Lite MR-14EX II - Manual (Page 34)

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You can set the flash output from 1/1 full output to 1/128 power in 1/3-
stop increments. The flash can be fired in one of the following three
ways: Flash tubes A and B fired at the same output, A and B fired at
different outputs, Only A or B fired.
Setting the camera’s shooting mode to <f> or <a> is
recommended. First, take a test shot to check the exposure.
1 Set the flash mode to <
q>.
Press the < E> button and set to
<
q>.
2 Turn off < ,>.
Press the < ,> button to turn off
< ,>.
3 Set the flash output.
Press function button 2 < @> or
< 8>.
X The flash output level is highlighted.
Turn < 9> to set the flash output,
then press < 8>.
q: Manual FlashN
Firing Flash Tubes A and B at the Same Flash Output
If high-speed sync is set, the setting range will be 1/1 - 1/64.
The guide number will differ between both sides firing and single-side
firing even when the flash output settings are the same (p.75).
You can set the flash output directly by turning < 9>, instead of pressing
the function button 2 < @> or <8> (C.Fn-13/p.63).
COP
Y