Attach any lens from canons huge range of ef and ef s lenses to the eos m including specialist lenses like macro and fish eye using this small lightweight ef m mount adaptor small lightweight ef m mount adapter small and lightweight to match the eos m the mount adapter ef eos m is easy to carry with you wherever you go it allows you to use the ef m mount on your eos m to attach any of canons extensive range of eos system lenses connecting you to a world of creative possibil