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430ex II output won’t adjust in manual mode

mberhardt
Apprentice

I have 2 430ex II flashes.  I’ve used them for years with out issues.  One of them will not not adjust the output in manual mode. It stays at full power.  

When I compare the two flashes to each other.  The only noticeable difference is on the one not adjusting output, it has the C.fn showing on the screen.

 I’ve attempted changing the B C.fn settings. Does not seem to impact a change.  I can’t figure out how to turn off C.Fn’s.

I have no idea if that’s what’s causing the challenge or if I should be trying something else?

1 REPLY 1

Anonymous
Not applicable

Could be set for wireless slave mode?

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