Sup gods, how do you achieve the effect. that's seen in the pics below? I'm referring to him looking like he's dissapearing or like he's fading off haha. I know it's slow shutter and flashes to freeze the subject but if anyone can specify any parameters or anything how to get that effect to look like he's fading off.
You’ve got the recipe already. Long exposure and a flash.
Make sure you’re on a tripod, I would hold my flash, start at 5.6 with maybe a 5-10 second exposure, have the skater roll through, pop that flash when they’re framed where you want, and check the results. Might need a little more time or less depending on how the background is lit. That reference photo has a lot of light in the background at his legs. That’s why it’s more ghosty there. Higher iso will give you more background light and determine your flash power. I’d try it at 100-400iso and experiment from there.