Made of aluminum alloy, light and strong, oxidation and corrosion resistance, long service life. The electronic aperture is adjustable, and the aperture scale is accurate and easy to adjust, making your shooting more professional. Support IS anti‑shake function, anti‑shake function can let you in sports, take a candid photograph and other situations, the picture image still clear as usual. Applicable for EF Mount Lens. Gold plated contact, removable 1/4in tripod base, gold plated electronic contact, enhanced data transmission, tripod base can be connected to the tripod and light frame. Applicable for M4/3 Mount Camera. Support EXIF information transmission, can efficiently and quickly transmit parameter information. Support AF autofocus, fast and stable autofocus function to make your shooting more clear and .