Macro the 1/f rule and flash duration

Started Sep 8, 2008 | Discussions thread
oldfartwitha5d Senior Member • Posts: 1,488
Re: Macro the 1/f rule and flash duration

Agreed, Fred. There are many factors deciding the minimum duration. Many of us also have found that the ETTL on the 40D is a bit inconsistent when used with the MT24 (ref. numerous threads on the misbehaviour of the 40D + MT24 combo). It could well be a similar scenario you're seeing here.

And I have to say I admire your approach and the willingness to try to measure things instead of just speculating and theorizing, as the rest of us are doing, incessantly

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