E-M5 X-sync speeds

Started May 11, 2012 | Discussions thread
OP ginsbu Senior Member • Posts: 1,420
Re: E-M5 X-sync speeds

ginsbu wrote:

Guy Parsons wrote:

Maybe they are safely allowing for some flashes that have a longer flash burst when at full power, or they have tested those other flashes and have found some problems under some conditions and have slowed things down to be safe.

I hadn't considered that. I tested at 1/4 power. I'll rerun tests at full power to see if it makes a difference (probably not until Sunday though).

You were on to something here: at full power both my flashes (Metz 48 & YN-560 II) require 1/200 for truly clean sync. At 1/250 there is slight darkening at the top of the frame but no actual black band -- totally usable with minimal PP correction IMO, but not completely clean. Still I'd rather be limited to 1/200 than 1/160!

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