Features:1. Made of good-quality aluminum alloy with black coating treatment, colorfast, durable and corrosion-resistant.2. Double structure of inner ring and outer ring. Three screws are used to fix the relative position of inner and outer ring, which can easily adjust the camera angle.3. Support 1.25 inch eyepiece diameter telescope to fit for Olympus M4/3 camera body.4. Connect cameras to some certain types of microscope.5. Lightweight, small size and portable.Specifications:Model: T2-M4/3Material: Aluminium AlloyColor: BlackEyepiece Diamter: 1.25 inchesMount: for M4/3 mountThread: M42 * 0.75 mmCompatible Cameras:for Olympus EP1 EP2 EPL1 cameraPacking List:1 * Adapter Ring for M4/3 Mount Camera1 * 1.25 inch Inside Thread Mount Bracket1 * WrenchNotes:Although the lens will fit physically, automatic diaphragm, auto-focusing, or any other functions will not operate correctly while using this adapter..