Altura AP-UNV2 as an Off-Camera Flash? Hey all! I’m a total novice when it comes to adding lighting to my photography (using a Sony A7IV). I’ve recently purchased an Altura AP-UNV2 on a recommendation from a friend, and while I see it can definitely be used in a multi-light setup, I have absolutely no idea how to incorporate it into one… or what I’d need to even set one up. Does an…