The Metabones Canon EF to Sony E Mount T Smart Adapter Mark IV is a precision-engineered lens mount adapter that enables photographers and videographers to use Canon EF and EF-S mount lenses on Sony E-mount camera bodies. This intelligent adapter maintains electronic communication between your camera and lens, preserving autofocus, image stabilisation, aperture control, and EXIF data functionality. Built from durable aluminium alloy with precision-machined brass mounting rings and chromium plating, the adapter features a high-performance 32-bit processor, efficient switched-mode power supply, and is powered entirely by your camera body with no external power source required. The included detachable tripod foot is compatible with Arca-Swiss, Markins, and Photo Cam ball heads. Flocking material lines the internal opening to reduce reflections, particularly when using tilt-shift lenses, whilst a wide-open aperture button makes manual focusing straightforward and accurate.