Seamless paper is typically used as as Background lit or unlit. When used like this you can easily keep light off on or off it to make it darker or lighter. In your examples all you did was light the paper along with your subject. There is nothing \"black\" enough that wouldn\'t turn dark gray in the case.
The best way to deal with this is to control the light spill using grids, flags, barn doors, etc. You can also elevate the subject off of the surface and then clone out what you set in on. You would still however, have to do some work in post. For example with NIK or Nikon NX you could set a black control point and dial down the black to 0 and or the exposure as well.
In these examples the plate was elevated off the black parer about 2\" and the glasses were sitting on the paper. It just depends on how much work you want to do. Both backgrounds were a dark gray.
Jan 17, 2015 at 04:32 PM
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