Black lines across bottom of image

[LisaLA]

I hope someone can help please. I was photographing in a studio setting with two flash heads (using softboxes) at about 45 degrees to subject. The background was white. In all of the images a horrible black line is running right across the bottom of the photograph. It is probably something obvious but I can't figure it out.

Any help would be appreciated. Thanks

[05Xrunner]

I get that when I set the shutter speed to high for the flash when i use my strobe lights.
I think anything over 1/320 I start to get the black line showing up at the bottom of the image. these are on indoor shoots

[savone]

I hope someone can help please. I was photographing in a studio setting with two flash heads (using softboxes) at about 45 degrees to subject. The background was white. In all of the images a horrible black line is running right across the bottom of the photograph. It is probably something obvious but I can't figure it out.

Any help would be appreciated. Thanks

It would probably be a good idea to post one of the shots.

[saturnin]

is it a black line or or fuzzy black at the bottom, u get that from having the lights to close to the camera and youre all the way zoomed in on your lens.

[Sledhed]

I agree with 05xrunner. It sounds like your shutter speed is set faster than your sync speed.

[05Xrunner]

Is this what you are getting
http://i12.photobucket.com/albums/a224/05Xrunner/IMG_6401.jpg
I seem to get this at anything over 1/320 with my excaliber lights....this was at 1/500

[cforslund]

Yep - Shutter speed is too high.

[pristic]

So what options does someone have in this case. (If they need high shutter speeds?)

[pristic]

I ask because I get the same thing. Does high speed synch help? I know that if the Flash is ON the camera itself then it works OK.

Peter.

[Atomic79]

High speed sync is a function of flash head either it supports or doesn't. HS sync works by rapidly pulsing the flash tube over the complete exposure, it is much lower output and is most useful in daylight fill light uses.

pristic- in what situations would you need a higher than sync shutter speed? High ambient light like daylight, which could be compensated for with aperture or iso. If you're trying to use shutter to stop motion than the flash will do that.

[LisaLA]

Thank you very much everybody - problem solved.

[SkipD]

Thank you very much everybody - problem solved.Don't keep us in the dark - what did you find? :p