How to turn an Octobox softbox into a perfect round circle in Photoshop

I recently did a photoshoot with Jolie Nguyen in the studio where we shot directly into a giant octobox, when what I really wanted a circle. But, it’s actually pretty easy to change an octobox into a round circle in Photoshop, so I put this little video together to show you how I do it.

There are probably other ways, but this is how I do it, making sure hands etc were inside the light area also made it super simple.