Ok, I should know the answer to this, but I've kinda, well, forgot how to do it.
So, I photograph at a sports event on a regular basis. In the summer months its held at night under arc lights. If I'm not mistaken these lights operate at 50Hz in Australia. I'm usually working with a Sony a7Riii. In order not to be distracting I use silent shutter, and that can cause significant banding.
So, what's the formula to work out the correct shutter speed to avoid banding? I'm usually at f2.8 with iso on auto and a max of 6400.
Hope that makes sense. Thanks.
The Photogrphic Eye