I've just bought myself an ebay trigger set for my Sigma EF-530 flashgun, and I'm experiencing some erratic behaviour with it. Currently I can only get the flash to fire when in manual slave mode (screen reads 'C1 SL' with no ETTL in the top corner). Also, when in that mode, if I set the output to 1/4 or below, the flash fires a high-speed strobe burst of four shots. Anyone else having this problem, or know of a solution?
Cheers, Chris
Cheers, Chris