Flares are common in music videos. You always see the coming in and out of the frame during performance shots. I know the concept to achieve them is to have a light moving in and out around the edge of the lens to create the flare. I know the lens build also controls the look of the flare. I have tried recreating this with a flashlight a few times, its ok, but I don't get the big beautiful look that I'm used to seeing. I'm curious if there's a specific type of light that's best to use to create these edge flares or not? Any best practice tips in recreating would be great.