Hey all. I have a Bower SFD290 universal flash for my camera. However, even though I got it quite a while ago, I still am unsure exactly how to use it. I took a picture of the back of it that may provide guidance but if anyone might know what any of it means, I'd appreciate it. There's three possible settings, the M, the blue or the red. If anyone knows what ANY of it means (I know the ISO is the left side obviously and the numbers in the middle do seem to be aperture values, but I'm not really sure what the DIN, the PT, etc mean.