<

ef

Canon Lens format abbreviation - this is the new fully electronic Canon lens mount introduced back in 1987. Lenses marked with EF are compatible with all Canon EOS cameras, digital and film, and are designed to cover 35mm full-frame image circle.

canonabreviations

ef

Abbreviation for electronic flash.
Photo Tips

ef

Standard lens system for EOS cameras since 1987. A large-diameter fully electronic lens mount, transferring data between lens and camera. There are more than 60 Canon EF lens models.
canonglossaryus