The Pixel FC-313/M TTL cord is about 70cm when coiled and the cable itself is about 3.6m long (Theoretical cord length). The operating length is about 2m. The UNC (Unified National Coarse Thread) of tripod socket is 1/4 inch. Make sure you install the cable correctly (please refer to product pictures or user manual). It's compatible with all Sony Speedlites and all other branded Sony fit flash units, including Sony HVL-F58AM, HVL-F56AM, HVL-F42AM, HVL-F36AM; MINOLTA: 5600HS(D), 3600HS(D), 2500D, 5400HS, 5400xi, 5200i. It can be mounted on any Sony Alpha DSLR Camera, including Sony Alpha A900, A850, A800, A700, A550, A55, A500, A450, A400, A380, A350, A300, A290, A33, A230, A200, A100, A100K; Minolta A1, A2, A200, Z1, Z2, Z3, Z5, 7Hi, 7i, 7D, 5D.