I almost never use a flash, and when I needed it yesterday, I discovered that I have forgotten a lot about how to use some of the functions of the Neewer VK750 flash. And it looks like I have lost the manual that came with the unit. I remember that the manual wasn't very good, but right now I have nothing. I have checked online for a manual that I could download, but nothing... So, I was hoping that someone could let me know where/how to get a manual. Thanks.