Ok I've tried everything but I'm obviously missing some vital element! I want to do high speed sync (freezing motion, water droplets etc) photography. I have a Canon 5d Mk11 and a 430 ex speedlite. I have set the speedlite (off camera) to M, checked that the zoom range is the same as the focal range of lens (although can't seem to see the range of the flash showing on the screen as mentioned in the manual) checked the H with arrow symbol is showing on flash. And yet when I try anything above 250 I get the black curtain. As far as I was aware with these setting I could use any shutter speed (obviously adjusting my aperature of course ) but nothing above 250 seems to work. What am I doing wrong ? Btw I also have the young uno trigger which works fine. Any help greatfully accepted






