PocketWizard usable range test. Range found to be 40 feet while using off shoe cord with Canon SpeedLite 580EXII, similar results expected with 580EX SpeedLite using wireless flash eTTL. Canon SpeedLite 430EXII Range Test with PocketWizard FlexTT5 and MiniTT1 found usable to 120 feet. Test perfor...