Alpha a7R III A

Very few concerts will require you to use electronic shutter, those that do are more likely going to be things like sit down classical stuff. I remember someone shooting someone who did nice slow songs and had to be dead quiet but it's very rare as most any normal show the sound of your shutter will

I would suggest you don't depend so much on a flash for start. Depending onthe gear you have, you may not even need one. I started to shoot weddings with more basic cameras and lenses, but regardless of that, I've always loathed the extra AA batteries shippment constantly with me. Because I never ha