Quote:
Originally Posted by JohnC
There is no Manual mode for the built-in flash, only eTTL (and preflash).
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Quote:
Originally Posted by MichaelBass
The pop-up flash always gives the preflash, so the alternative is to place a small cheap manual flash in the hot shoe which will fire just on the X-sync, and then trigger the standard optical slave units in correct sync.
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Oh, you were referring to the pop-up...I thought you had a 580 or 550 and want to trigger the 540 LOL (Oh, that's me!) I have the 540EZ that has a manual setting.