Nikon D810/Inon 330 not firing.
Hi Pavel - I have a relatively new D810/Inon 330 (330s are new). I test fired before vacation and all worked well. After setup at resort, I'm not synching. I have removed the optical cables and do not see the LEDs lighting up. I have the converter settings at 0 and am shooting manual. I replaced batteries before packing for the trip and successfully tested with the new batteries. Can you suggest a way to debug to find where the problem is? Thank you very much.