When shooting out, the photography staff often feels anxious to carry too much heavy equipment. The handling of the equipment such as the focus track, rocker arm, and camera always makes the shooting of small teams or single people very difficult. . In order to make the load easier, the sliding is smoother and the operation is more convenient. The use of the carbon fiber tube's focus rail is a weapon for the high-end photography team. For example, a carbon fiber track with a length of 1.2m, a width of 16.2cm and a wall thickness of 2mm is only 1.9kg, and the load can reach 10kg, which can meet the needs of work.