MMF-1

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Lens SideFour Thirds
Camera SideMicro Four Thirds
TypeOfficial (first-party)
ManufacturerOlympus
Electronic ContactsYes
AF with Built-in-Motor LensesNot guaranteed by the manufacturer
NotesAutofocus operates only via the camera body's contrast-detect "Imager AF" system (Four Thirds lenses were designed for phase-detect DSLR AF, and no adapter restores that). In general, SWD (Supersonic Wave Drive) lenses focus faster and more reliably than older non-SWD lenses, and AF speed/behavior varies by camera body and firmware version. Exact AF compatibility differs by specific camera body and lens combination — check the manufacturer's official compatibility chart before relying on AF for a particular pairing.
Release Year2009
BuyFind MMF-1 on eBay

Olympus’s original adapter for mounting Four Thirds system lenses (Zuiko Digital, Leica D, and compatible third-party Four Thirds lenses) onto Micro Four Thirds camera bodies, with full electronic contact pass-through. Silver finish; no dust/splash sealing.

Compatible Cameras

Micro Four Thirds Cameras (87)

Compatible Lenses

Four Thirds Lenses (28)

Other Adapters for This Combination

  • DMW-MA1 Official
    AF: Not guaranteed by the manufacturer
  • MMF-2 Official
    AF: Not guaranteed by the manufacturer
  • MMF-3 Official
    AF: Not guaranteed by the manufacturer
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