yn568ex

My YN568EX speedlights are emitting three quick flashes when I press down on the shutter before the shutter finally activates. I can't figure out why or if I'm stuck in some mode I can't get out of. This happens regardless of them being in the hotshoe or triggered remotely. Any help would be...

Hi, I Would love to get your advice on the minimal lighting setup required for taking a group photo of over 50 people. A beautiful charity group in my hometown are going to use this photo for their advertisements, and when I heard they're going to shoot it using their mobile phone - I...