correct... but sometimes you want the bokeh....Henessy said:But if you stop down your apeture, you can shoot at a lower shutter speed.:dunno:
Henessy said:But if you stop down your apeture, you can shoot at a lower shutter speed.:dunno:
Certain camera high speed sync can go beyond 1/250 ~ 1/8000 sec.jdredd said:not necessarily true.. sometimes, in bright sunlight, when you are using fill flash, you open up aperture say to 2.8 because you want bokeh , even at ISO 100, but you may still need a shutter speed in excess of 1/250 to correctly expose.
Why not????Henessy said:Ok, a bit side track from the topic. Is it possible to perform fill in flash just using SB-800 or 580EX with small apeture like f8 and above?
Thanks
Don't restrict yourself... do some testing on your own.Henessy said:Does it mean that if I only use fill in flash for group shots, I most probably will not need high speed syn flash, since the apeture involved is usually quite small.
jnet6 said:Certain camera high speed sync can go beyond 1/250 ~ 1/8000 sec.
are you sure...???jdredd said:as far as i know, highest sync speed is 1/500..
after that, its not really in sycn with flash.
jnet6 said:are you sure...???
The main thing is the flash/stobe can sync at high speed...jdredd said:sorry let me reprhase that... the highest speed that i now that the flash is fully in sync with the shutter is 1/500. you can get very high shutter syn speeds with flash, up to 1/4000 etc etc,,, but for those high speed syncs, you dont get a full flash exposure over the whole picture.
i've done portaits fill-in flash at F11+slave... :sweat:Henessy said:I usually only need fill-in flash for group shots. But heard from somebody that fill in is only effective from f4 and below, and it usually requires very high flash syn speed. Thats why I never tried fill in flash for group shot before, since it requires very small apeture.