What Are the Canon Lens Mounts? EF, EF-S, and RF Explained

Learn about Canon's main lens mounts—EF, EF-S, and RF—and their compatibility with different camera types.

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Canon primarily uses the EF, EF-S, and RF lens mounts. EF (Electro-Focus) is for full-frame and 35mm film SLRs, while EF-S is for APS-C DSLRs. RF is designed for mirrorless cameras, providing enhanced performance.**

FAQs & Answers

  1. What is the difference between Canon EF and EF-S mounts? Canon EF mounts are designed for full-frame and 35mm film SLR cameras, whereas EF-S mounts are specifically made for APS-C DSLR cameras with smaller sensors.
  2. Which Canon lens mount is used for mirrorless cameras? The RF lens mount is designed for Canon's mirrorless cameras, offering improved performance and new features compared to EF and EF-S mounts.
  3. Can EF and EF-S lenses be used on Canon mirrorless cameras? EF and EF-S lenses can be used on Canon mirrorless cameras with an appropriate adapter that supports the RF mount.

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