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What is the duration of the built-in flash for the Canon M6?

Started 3 months ago | Questions thread
Sittatunga Veteran Member • Posts: 5,406
Re: What is the duration of the built-in flash for the Canon M6?
1

cryora wrote:

I have a Canon M6 (mark 1) and I am interested in trying out some high speed photography using the built-in flash. I am having trouble finding any specs on the flash duration. There is a spec called X-sync that is 1/200 sec, but I presume that has more to do with the timing of the flash relative to the shutter and not the actual flash duration.

I imagine this can be tested with a fan with a known RPM with a speed fast enough to exhibit some blur for whatever the flash duration is, or simply measure the flash with a fast photodiode, but I am not in possession of such tools.

It will vary, depending on when the E-TTL cuts it short to get the exposure right.  I'd be surprised if the maximum duration was more than a millisecond.

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