Fotodiox Pro Lens Mount Adapter - Deckel-Bayonett (Deckel Bayonet, DKL) Mount SLR Lens to Canon EOS M (EF-M Mount) Mirrorless Camera Body with Selectable Clicked / Declicked Aperture Control Adapter Type_Helicoid Adapters so even if the mount

so even if the mount stays around lenses won't stay on that update list forever (for instance Nikon's new E lenses are incompatible with cameras just two generations old)

Old lenses also let you change camera systems

Lens Mount: Olympus Zuiko (OM) 35mm SLR Lens Body Mount: Canon EOS M (EF-M) Mount Mirrorless Camera Body Manufacturer: Fotodiox Inc

"stop-down mode" will need to be used when metering since the lens does not have the ability to have its aperture controlled by the camera body

The unique styling maintains/enhances professional appearance

Fotodiox Pro Lens Mount Adapter - Deckel-Bayonett (Deckel Bayonet, DKL) Mount SLR Lens to Canon EOS M (EF-M Mount) Mirrorless Camera Body with Selectable Clicked / Declicked Aperture Control Adapter Type_Helicoid Adapters so even if the mountFeatures: Mounts Deckel Bayonett (Deckel Bayonet, DKL) 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 Integrated selectable clicked declicked aperture control dial for adjusting the lens aperture Precise fit and solid connection; lens has no play, gap or wiggling when mounted on adapter and no adjustments required