Traditional Culture Encyclopedia - Photography major - Can photographic background paper directly penetrate the shaft?

Can photographic background paper directly penetrate the shaft?

Photographic background paper can be inserted directly into the shaft.

Double-sided background can be hung on the photographic electric background axis by splicing. Two pieces of background paper A and B are hung in the same direction, and the joint between the background and the edge of the background can be pasted horizontally with double-sided tape. After passing through the reel, the length of the two background papers will be different, and the previous A can be automatically put down and continue to rotate forward. After half a turn, A is wound around the backstage shaft, and B replaces A, so B is put down.