Can you get a 580 to fire on the H4d?
Yes.
I tried this last night and it worked fine. So..... theoretically the TT1 should work, it was a faf to fit onto the hotshoe, I had to use a bit of force. Did yours fit ok?
Same problem fitting the TT5 to the H4D. You need to make sure the locking ring as all the way up otherwise it jams.
When you fire the H4D do you get an orange blink on the TT1? I got an orange blink last night but only when it was properly fitted to the hotshoe.
YES. I get a quick red flash on the light on the TT5 when I shoot on the H4D but it doesn't communicate this to the other TT5...?
Ooops!
or more like Pooooo!
MichaelH