Ibland kan detta med 550EX och radiosandara vara lite problematiskt, aven om visa sager att det funkar. Problemet kan vara att de synkar tva ganger i rad.
Laste just detta, fast det handlar om Bowens Pulsar radiosandare.
I hooked up my Pulsar to an osciliscope and found that the Pulsar holds the XSync connection closed for about 1/6th of a second. The pulse really should be 1/60th of a second to work correctly with flashes like the Sigma 500, which for some reason continues to fire until the XSync connection is no longer closed.
Interestingly, the PocketWizard folks say that their pulse time is about the same length, though it is settable to a shorter duration with the MultiMax units. So for PW Plus II users, the same problem should exist.