Fotodiox Pro Lens Mount Adapter - Konica Auto-Reflex (AR) SLR Lens to Canon EOS (EF, EF-S) Mount SLR Camera Body Mounts Konica Auto-Reflex (AR) SLR Lenses to Canon EOS (EF, EF-S) Mount SLR Cameras; infinity focus or beyond allowed with built-in 1.4x focus correction lens Enhanced craftsmanship and high-tolerance construction for demanding professionals Precise fit and solid connection; lens has no play, gap or wiggling when mounted on adapter and no adjustments required Precision all-metal construction with chrome plated brass mounts for secure and solid fit Limited 2-Year Manufacturer Warranty