Quote:
Originally Posted by gbrehmer
Please bear with me, this is my first post, I hope I've picked the right forum. Would an add on flash for my Canon sx20is eliminate the streaking ghosts I get when is use the camera flash on moving subjects? Or can I compensate with the camera settings to eliminate this effect?
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What you are experiencing is an effect that photographers use as a creative effect, called "dragging the shutter." This happens when your shutter speed is low/slow and, if your camera settings are optimal, allows ambient light in your scene to be captured while the flash freezes your subject and/or provides fill light.
You can decrease the shutter drag (blur) effect by either increasing your shutter speed or opening up your aperture more (lower aperture value). However, less ambient light will be recorded and your background wll be darker and objects in the foreground will be lit by your flash.