What about an outfielder at a baseball game against the wall 1/800th and I still get blur? The farther away, the more magnified the shake.
The jets were at ~400mph and the 1ft would apply if not panning. I have my jet panning down pretty good.
1/3200 @420mm on a crop body. Heavily cropped
I know it does not focus well but this was just under the speed of sound. Maybe .9?
2000 740i-Annalisa and 2008 335i-Weebl. Weebl may wobble but has DTC