The backdrop support system typically mounts backdrops that feature a pole pocket. This pocket simply slides onto the cross bars. Backdrops without a pole pocket can also be mounted to the backdrop support system with spring clamps. Spring clamps (AKA A-Clamps) can be found at any hardware store and typically only cost a few dollars. These clamps are great to have around your studio, as they also allow you to clamp backdrops taut at the bottom to eliminate wrinkles or shadows.
Again, if you are starting out or having trouble I would recommend getting the light a little further back (somewhere between 4 to 8 feet if using a similar sized light source). You will also notice that the right side of my backdrop is actually not 100 percent white, it fades to a light gray shade. I could increase my fill or correct this in post-processing, but the slight shift is intentional in this image.
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