badger: " I would like to see that same photo with the camera held sideways. I bet the string would straighten out". I took some with the camera upside down to confirm that the unbalanced look was an artifact of shutter movement-but they didn't show the string well, they did show the upper limb "ahead" of the lower limb.
Willie"what kind of camera is it? and what is the frame rate possible at that resolution? Pretty good pics, overall, being from a video."
It's a Panasonic lumix lx100, it can shoot video at the standard rate (30 or 60 fps). If I shoot stills it has a burst setting, but still only 60fps. Each frame of the video is an 8MP image. Works great for surfing photography.
One reason I was shooting these was to have a look at my release- comparing hand position is=n the frames before and after. This showed that my release is "dead" that is, hand remains still, not moving back as in a "dynamic" release.
Next I want to set it up as a closeup on the arrowshelf, and also try various ways to counteract the shutter illusions.