Yes, check the OM-1 owner's manual, - page 28.
Electronic Flash- recommended to use shutter speeds of 1/60 to 1 second .
FP Flash- recommended to use shutter speeds of 1/60 to 1/000
second.
George S.
> With FP flash bulbs the light output stays steady for some relatively long
> period of time, so you can use higher shutter speeds (which are made in
> focal plane shutters by moving a slit across the film) as the light output
> will be relatively constant during the period that the shutter curtains slit
> is moving across the film. The F-280 flash mimics this long-duration light
> output by doing many overlapping electronic discharges.
> --
>
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