therwol wrote:
Depends. This "rolling shutter" issue, previously called focal plane distortion in film cameras, was first noticed with early, mechanical focal plane shutters. ... Vertical, multi-curtain focal plane shutters in modern cameras may travel across the frame at something like 1/400 second. This greatly reduces the kind of distortion we're talking about.
Thanks. Best, most informative answer to the OP's question we've had, especially as it doesn't talk about the relative flexibility of golf clubs and tennis racquets.