Which digital EOS has the fastest flash sync speed?

Stewart Bresnan, Colchester

BRIAN Says… Of the current models the 80D, 7D Mk II and 1D X Mk II have the fastest flash sync at 1/250 sec. The older EOS-1D Mk III and Mk IV sync speed was 1/300 sec, but the original EOS-1D flash sync was 1/500 sec, and that’s the fastest.