I have a Nikon D5500, SB-600 Speedlight and Neewer FC-16 wireless flash trigger and receiver system. My camera and flash are both in manual. The trigger and receiver are both set to "flash". The green lights on them are flashing (so the batteries are fine). I still can't get it to work. The speedlight doesn't flash when I press the shutter on my camera! Is the Neewer even compatible with the D5500? Any suggestions?! Thank you! /Arvind
What mode is the SB-600 set to? If it is set to "Slave", it will ignore the hot shoe of your trigger and wait until it senses a flash of light instead. You need to set the SB-600 to manual mode just as if it were attached directly to your camera's hot shoe so that it will respond to the trigger on the flash's hot foot.