Comes with a practical wrench, for adapter installation and removal with exquisite workmanship, powerful and sturdy, rust-proof and impact-resistant fast and stable auto-focus and IS image-stabilization function, clearer and more photos fast EXIF information transmission and electronic control With gold-plated contacts, can greatly improve the data transmitting performance between the lens and camera Specially designed replacement for EF EF-S lens to R mount full frame cameras