I'm so sorry for this craptastic video but i wanted to show you that my G.E. #5 flashbulbs worked just dandy to image my master. I've heard you have to use the blue filter every time with the #5 bulbs but I didn't and my print came out just fine. It is my version of an open screen. I used a riso fine pen and a ruler to make a mesh pattern. I'll use it for backgrounds and also to print with stencils. More on that later. OK, now ebay away!