Fotodiox Pro Lens Mount Adapter - Contax/Yashica (CY) SLR Lens to Canon EOS (EF, EF-S) Mount SLR Camera Body, with Focus Confirmation Chip Premium Grade Fotodiox Pro Adapter with built-in Focusing Confirmation Chip For use with Contax/Yashica (CY) Mount D/SLR Lenses to Canon EOS Enhanced craftsmanship and high-tolerance construction for demanding professionals Precision all-metal construction with chrome plated brass mounts for secure and solid fit 24 Month Manufacturer Warranty