On a rather dreary day with pretty poor light, I took a series of images of my photographer's assistant (AKA Mrs O) walking in our back garden. Not terribly original or artistic but I got the effects required. The main issue was the dull light which meant the images became blurred rather quickly and shutter speeds were limited. I shot all the images in Shutter priority, raw format at 34mm and ISO 400 which I felt was a decent compromise between clarity and noise. I then applied some levels adjustments and a small amount of sharpening when processing the images and converting to jpeg.
Because of the low light, the images lose sharpness very quickly after 1/800 shutter speed. Even at 1/500 there is a definite loss of sharpness which makes the images look amateurish. At around 1/80, the images stop looking just out of focus and a more pleasing sense of movement becomes apparent. At and after 1/4 shutter speed, the images look ghostlike and become too indistinct to be of interest.
I normally use Aperture Priority mode as I find this suits my needs, but I enjoyed the use of Shutter priority and will use it more in the future.
I really like the later ghostly images. They not only give a sense of movement but add a surreal effect to a rather average scene.