So let's see, ISO 50-200 is 2 stops. A normal bright day without snow would typically be F16 with ISO 200 or F8 at ISO 50. Both of those would be accurate with a shutter speed of 1/250. So, assuming F16 was correct with ISO 200 @1/250, then F8@1/500, F5.6@1/1000, F4@1/2000, F2.8 @1/4000 and F1.6@ 1/8000 would be accurate. If working with ISO 50 @F8 @ 1/250 was accurate then F5.6@ 1/500, F4@ 1/1000, F2.8@ 1/2000 and F1.6@ 1/4000 would be the limit. With some brighter scenes and digital stretching 1/8000 is possible. But with any clouds and possible shade it's less so. What's the point? Each of the above settings would give appropriate exposure but only the fastest shutter speed would stop high speed, like a bullet. Interesting that he chose to go the the limit of shutter speed when other choices were available.

So let's see, ISO 50-200 is 2 stops. A normal bright day without snow would typically be F16 with ISO 200 or F8 at ISO 50. Both of those would be accurate with a shutter speed of 1/250. So, assuming F16 was correct with ISO 200 @1/250, then F8@1/500, F5.6@1/1000, F4@1/2000, F2.8 @1/4000 and F1.6@ 1/8000 would be accurate. If working with ISO 50 @F8 @ 1/250 was accurate then F5.6@ 1/500, F4@ 1/1000, F2.8@ 1/2000 and F1.6@ 1/4000 would be the limit. With some brighter scenes and digital stretching 1/8000 is possible. But with any clouds and possible shade it's less so.