How to see the quality of photographic background paper

The chief commercial photographer answers one. The background paper is selected in three parts, and two points are based on light. First, the color is uniform, there can be no spots, and the color can not meet the standard. Think about why the gray card is so expensive, and the second flash can't reflect light at any angle (high light spot). The third is the thickness of the background cloth, because many studio background cloth is to be stepped on by models, so it is cut off after a few times, so the thickness doesn't matter.