Olympus TCON SA-2 3x Extension B Holder Support Arm for the E-10 & E20N DigCams Olympus offers this Extension B Holder Support Arm for E-10 Olympus camera and TCON-300S Teleconverter. It comes with elegant leather carrying case for both camera and converter. The TCON SA2 supports both the Camera and 3X extension Lens when they are attached together. The E-10 and the lens are positioned and held in alignment by two registration pins. It is especially useful when using the Li-Po Battery Grip.