1. It was nice chatting with you. 2. Well, it's getting late. 3. Anyway, I should get going. 4. (formal) Sorry, but I'm afraid I need to... 5. I'm sorry to cut you off, but I actually gotta run. (cut you off = interrupt you)
While getting a perfect photo with a softbox takes a lot of skill, it s pretty hard to get a BAD photo with a softbox. On camera flash is totally different. It takes a lot of practice to get it to look just right. To learn more about on camera flash,check out this book.