Abstract: The invention provides a spring arm device, comprising: a parallelogram linkage mechanism composed of a mobile side, a fixed side in parallel with the above-mentioned mobile side, an upper arm and a load arm respectively connected with the mobile side and the fixed side; a spring, one end of which is connected with the fixed side or the upper arm while the other end is connected with the mobile side or the load arm or the hinge joint between the mobile side and the fixed side; a pull rod used for installing the above-mentioned spring; a copular axle used for positioning the above-mentioned pull rod and a retainer used for installing the above mentioned copular axle; wherein, the above-mentioned retainer is positioned on the mobile side, or on the load arm or on the hinge joint between the mobile side and the load arm.

Abstract: The present invention relates to a photographic apparatus and more particularly pertains to a stabilizing rod for a video camera stabilizer which comprises a data processing circuit, wherein it further comprises memory units which are connected to the data processing circuit for receiving digital format signals from the data processing circuit and recording the digital format signals. The present invention provides a stabilizing rod for a video camera stabilizer which is connected to memory units and is therefore capable of recoding image content in digital format for future editing and playback.