I would stay away from that and look into more serious mounts for a DSLR, i would go with a 2 or more suction cup mount rig. Check out this website. http://www.filmtools.com/delkin-fat-...era-mount.html
let me know what you think. also what Dslr do you have? i paid 1100$ for my camera with kit lens, idk if i would trust all that with a 30$ mount if you catch my drift.