Fotodiox Pro Lens Mount Double Adapter, Mamiya RB67/RZ67 Mount and Canon EOS (EF / EF-S) D/SLR Lenses to Micro Four Thirds (MFT, M4/3) Mount Mirrorless Camera Body with Built-In Focus Control Dial Lens Mount_Konica AR Check first to ensure that

Check first to ensure that the lens does not protrude past the adapter mount

please check the Fotodiox Knowledge Base article

977 Pitch) Leica Thread Mount Lenses to Sony E-mount mirrorless cameras

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Fotodiox Pro Lens Mount Double Adapter, Mamiya RB67/RZ67 Mount and Canon EOS (EF / EF-S) D/SLR Lenses to Micro Four Thirds (MFT, M4/3) Mount Mirrorless Camera Body with Built-In Focus Control Dial Lens Mount_Konica AR Check first to ensure thatFeatures: Mounts Mamiya RB67 RZ67 Mount Lenses to Micro Four Thirds (MFT) mount mirrorless cameras; infinity focus or beyond allowed Integrated focus control dial for adjusting the lens focus 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