Your problem is that you are using "fill" flash such that the major
exposure is still via ambient light. Because ambient predominates the
flash can't freeze the frame.
Moose frequently mentions high ISO capability being more valuable than
image stabilization via body or lens since high ISO can freeze subject
motion as well as camera motion.
Your solution is to up the ISO probably by two stops worth from whatever
base you were at... and increase the shutter speed accordingly. As to
the fill flash sync problem that will create... well, you can't have it
all unless you're willing to spring for some different equipment. Got
any FP bulbs around?
Dr. Flash
James R wrote:
> On Mon, Feb 16, 2009 at 11:13 AM, Ken Norton wrote:
>> Thy don't sit still long enough to keep a flash picture from getting
>> blurred. ;)
>
> This brought to mind a problem I had recently where I had to take some
> photos of a runner. It was an overcast day so I wanted to add a bit of
> flash to give some proverbial punch, but not completely overpower
> daylight. I thought someone jogging would be 'stopped' adequately by
> 1/250th of a sec, but it turned out that even at 1/500th I was getting
> a little movement. It really needed something like 1/800th to freeze
> movement completely.
>
> My camera has a 1/250th sync speed, excluding the 'super' flash mode
> which wasn't an option for me. So the only way I could get something
> close to what I wanted was to use 1/500th and only have the flash
> illuminate the top half of the runner, which looked alright as that
> coincided with the horizon. I can't help thinking that I've missed
> something and there's some way of getting this to work just fine - any
> suggestions?
>
> James
>
>
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