a support apparatus for a portable weight such as a camera comprising at least a pair substantially friction - free arms which are rotatably and pivotally interconnected at a hinge bracket . one end of the interconnected pair of arms is rotatably and pivotably connected to a mount which may be worn by an operator or attached to a movable support . the other end is adapted to carry a weight such as a camera . each arm is parallelogram in configuration and is provided with a segmented spring designed to apply a constant force to compensate for the weight applied to the end of each arm . the segmented spring acts as a single spring mounted diagonally across the parallelogram and exerts a force which is equal to the weight applied to the end of the parallelogram arm times the length of its diagonal divided by the distance between the attachment points of the parallelogram to the hinge bracket . in operation , the weight carried by the support apparatus is spacially decoupled from the mount to increase isolation of the weight from the operator or support .