I wish I had an image to show as proof right now, but I don't. I'm sure some of you will know a solution anyway.
I'm into water drop photography. I have a 40d and 430ex, and for most of my shots, I will use 1/250 shutter as the sync with my flash. I change the settings of the flash to see what works best. I usually will use ettl on auto, but will also set flash to manual at 1/8-1/16 if I have enough light. But on many images, I see a slight ghosting of certain areas of the water drops. mainly around the highlights of the subject. Other times I see streaks of light either below or above the point of origin.
Can anyone direct me to the main cause of this and how to keep this from happening.
Thanks for any help, and I will try to produce an example when I can get to my main computer. Thanks.