Fotodiox Pro Lens Mount Adapter - Hasselblad V-Mount SLR Lens to Canon EOS M (EF-M Mount) Mirrorless Camera Body Lens Mount_Canon FD move the release lever (circled

move the release lever (circled in red) in the direction of the red arrow:

Old lenses also let you change camera systems

in effect this adapter acts like a small built-in bellows

since manual lens mount adapters do not power the lens

Mounts Canon EOS (EF / EF-S) D/SLR Lenses to Sony E-mount mirrorless cameras

Fotodiox Pro Lens Mount Adapter - Hasselblad V-Mount SLR Lens to Canon EOS M (EF-M Mount) Mirrorless Camera Body Lens Mount_Canon FD move the release lever (circledFeatures: Mounts Hasselblad V Mount SLR Lenses to to Canon EOS M (EF M) mount mirrorless cameras; infinity focus or beyond allowed 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 24 Month Fotodiox warranty