I'm trying to get a true black background and duplicate the setup shown in this link.
http://www.pbase.com/mcmomo/no_07
When I shoot this the background is a dark grey with a reading in Photoshop of 25-30 whereas the one in the link is about 2 or 3. I'm using a 9' black paper background and I have my chair set about 6' away from the background and the light is about 6' away from the chair. I have 2 pieces of black foam core across from the light because I thought the light was bouncing from the wall and hitting the background. All the walls in my house are white and the ceiling is 8' high. I'm using a hensel porty light at the lowest power setting it has. So my question is how do I achieve this or is it impossible with the space I have?