6D and 580EX question

Started Jan 31, 2013 | Discussions thread
Lemming51 Forum Pro • Posts: 14,596
That's just how AUTO ISO works with flash

JLim22 wrote:

One thing I don't understand is auto ISO with 580ex.

Auto ISO works in manual mode, but if the flash is attached, it goes to ISO 400 and it doesn't change. It's the same for 430ex.

Maybe I need to upgrade to the II models or maybe the 6D doesn't want to do auto iso with flash unit on.

It doesn't matter which model speedlite is used, that's just how AUTO ISO is programmed.  See page 108 of the 6D instruction manual.

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