1/320 sec is about 3msec. I don't remember the numbers but I believe
most flash durations are significantly shorter. So you've got a flash
that starts early enough and ends early enough to synch. I don't know
how much variability there is between shutter open and flash firing.
It's probably mostly a function of the camera. thhere also has to be
some time for the main flash to fire the strobes with a multi-flash
setup.
-jeff
On 2/6/07, Ian Nichols <ian.a.nichols@xxxxxxxxx> wrote:
>
> Whilst playing with my newly acquired flashgun, I realised I'd
> forgotten what the top sync speed of my E-300 is supposed to be, so I
> tried to find out by experiment. An unexpected bonus of the instant
> feedback of digital! Just point it at a blank wall, pop the flash on
> and shoot away- when part of the image goes dark, your shutter's 2nd
> curtain is already closing when the flash goes off.
>
> Managed to get a fully exposed frame (zoomed in to x10 and scrolled
> right to the edge) at 1/320 s ..... which is about a stop faster than
> I thought it would be. I'm sure that's not the official value... hang
> on, it appears to be 1/180 officially. Have I just got an unusually
> good one, I wonder?
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