Forgive me if this is a stupid question but I'm venturing into Group Shots and portrait shots and bought some Muslin fabric for a backdrop from a Fabric store trying to save a few bucks but it is so thin! I was going to try a dye pattern or something. Why is Muslin so popular if it is so thin you can see what is behind it? I'm mobile alot of the time and can't always setup the background against a clean wall. I started draping a Black Muslin behind whatever other one I was using to make it thicker. Any help would be great. I have two Flashpoint 1220 strobes with a softbox and an umbrella.