Hey all, my first post. I'm working on some screens that will have a printed area of 18x28". I've been doing screens that are small-scale (under 10x10"). I've been using a 150W clear incandescent bulb.
Obviously, using one bulb on such a large area at that same distance is going to over-burn a big centered hot spot. What I'd like to do is increase the distance until I can visually see the light disperse, which looks like about 30" or so.
I'm currently setting up a test screen to measure as best I can for exposure times, but I'm not sure if my results will tell me anything and I'm hoping to get cooking on this pretty soon. Any advice about this increase in distance?
Here's the poster, black and red printed on yellow paper...