The Metabones T Speed Booster XL 0.64x Adapter for Full-Frame Canon EF-Mount Lens to Select Micro Four Thirds-Mount Cameras allows a full-frame Canon EF-mount lens to be mounted onto a Micro Four Thirds-mount camera. While doing so, the adapter's optics help to maximize the connected lens's apparent angle of view while providing a 1.3-stop increase for the camera over the lens's aperture range.

Features:

• Allows a full-frame Canon EF-mount lens to be used with a Micro Four Thirds-mount camera
• Maximizes apparent angle of view of combined camera and lens
• Provides a 1.3-stop increase for the camera over the lens's aperture range
• Integrated jog dial for incremental aperture adjustment and push-button access to lens's widest aperture setting when used with a compatible Panasonic camera
• Six lens elements in four groups for optical clarity as well as color fidelity
• Supports electronic communication between camera and lens to enable autofocus, image stabilization, on-camera aperture control, and EXIF metadata generation when possible
• Internal coating minimizes reflections within the adapter barrel
• Detachable, Arca-Swiss compatible tripod foot with 3/8" threads
• Aluminum alloy components for weight reduction
• Brass mounting rings prevent wear-and-tear
• Locking mechanism for secure attachment of lens with push-button release