Abstract: A support assembly for supporting a camera relative to a camera support includes an elongate support arm, a first bracket assembly for mounting the camera to the support arm and a second bracket assembly for mounting the support arm to the camera support. Each bracket assembly includes i) a clamp member for clamping onto the support arm, ii) a support member pivotal coupled by a pivot shaft on the clamping member, iii) a mounting member supporting the camera equipment relative to the support member; and iv) a locking member adapted to be coupled between the clamping member and the support member so as to simultaneously fix the mounting member relative to the clamping member at a selected angular position and fix the clamping member relative to the support arm at a selected longitudinal position.