Well, you did ask for it, didn't you? :smile: Here are a few shots from the Red Bull race which was part of the Fleet Week festivities a couple of weeks ago, in the San Francisco Bay. The full EXIF is still in the pictures; these are crops of about 40-50% for the tight shots and about 80% (meaning 80% of the original pixels before resizing) for the wide ones. 1/640s @f10 1/500s @f14 1/640s @f11 1/750s @f11 1/640s @f14 1/500s @f14 Here is "Fat Albert", slightly out of place, but hey, it has props! :smile: (1/320s @f10) The bottom line? About 1/400s to 1/640s is good to blur the props for small planes and 1/250 to 1/320 for big ones (the engines rotate slower?). Please share your experiences.