I just got a Sony HVL-43M flash, to use with my NEX-6. Though I usually use manual flashes, I'm about to go on a trip where I'll want to use it sometimes on the camera in TTL. The TTL mode works fine, and it's a handsome little unit. But, I can't get the thing to work off-camera at all! I've tried it in manual and wireless modes, tried to trigger it optically from the NEX built-in flash or on my radio trigger (a simple phottix "manual" trigger), but I can't get the flash to trigger off-camera at all. I know that the NEX-6 won't do the magic Sony wireless TTL flash thing, and I can live with that. But, is it possible that this flash won't trigger at all unless it's either on a Sony camera with a multi-sync shoe, or with the full Sony wireless flash protocol? Could it possible be that lame? Or am I missing something obvious?