Tom wrote:
It sounds to me that the flash is doing exactly what it's supposed to do. My 550EX manual (p32) makes no mention of the flash shifting to non-FP mode when the shutter speed drops to (or below) the X sync speed.
Tom, FP makes no sense for shutter speeds at Xsync or below. I tried at 1/160 and it is not happening, a notch higher to 1/200 and the bug shows its ugly face. I also tried the same experiment with my EOS 10D and at x-sync, the EOS10D is not activating FP mode, even when the flash FP mode is on. Imagine that you have CF-3=1 meaning that on AV mode, your shutter speed defaults to xsync speed (1/200), then if you forgot to turn FP mode off, the bug will be playing havoc with your flash range and exposure. I have never seen that behavior before (on film or digital). -greetz, Gerard. * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
