Metabones EF-E mount T Smart Adapter (Mark V) without Support Foot, w/ IBIS Switch for Canon EOS EF/EF-S Lens to Sony E-Mount (MB_EF-E-BT5) Review

The Metabones EF-E mount T Smart Adapter Mark V is a lens adapter designed to mount Canon EF and EF-S lenses onto Sony E-mount mirrorless bodies. At $245, it sits in the premium tier of the adapter category, offering electronic communication between lens and body for autofocus, aperture control, and image stabilization coordination. The Mark V iteration includes an IBIS switch, which allows shooters to toggle stabilization on compatible Sony bodies when using optically stabilized Canon lenses, preventing potential conflicts between dual stabilization systems.

This adapter is aimed at hybrid shooters or those transitioning from Canon DSLRs to Sony mirrorless who want to preserve their existing EF glass investment. The lack of a support foot keeps the profile compact but may require separate tripod mounting solutions for heavier telephoto lenses. Metabones has long been a go-to brand for high-quality adapters with reliable firmware support, and the Mark V continues that lineage with refined autofocus algorithms and improved compatibility across Sony's E-mount lineup.