The E-series mount was designed so that lenses could be used on cameras from different manufacturers and vice versa.
The Olympus OM lens mount was the standard mount used for Olympus SLR (single-lens-reflex) cameras and lenses until 2002, when Olympus switched exclusively to the newer E-mount, or "four-thirds" mount. Since the Olympus OM lenses were known for their quality, many loyal Olympus users, especially advanced amateurs and professionals, retained their collections of OM lenses even when they purchased new E-mount digital SLRs. Therefore, Olympus designed a simple ring adapter (model MF-1 OM) that allows use of the older lenses on the newer cameras. The inner mount matches the E-series camera mount, and the outer mount matches the OM lens mount.
Instructions
1. Remove any lens or cap that is attached to your Olympus E-series camera body.
2. Align the MF-1 OM adapter with the lens attachment marks in your camera's mount and turn it clockwise until it locks in.
3. Align the mount of your Olympus OM "Zuiko" lens with the inside grooves of the adapter and turn the lens to the right until it clicks into place.
4. Use your camera in the "A" (aperture) or "M" (manual) mode and focus the lens manually using the viewfinder rather than the distance ring to determine proper focus.
5. Press the release button at the lower left of the lens mount of your camera and turn the lens counterclockwise to remove it and the adapter.
6. Remove the lens from the adapter mount by pressing the release button on your lens and turning the lens counterclockwise while holding the adapter mount.
7. Mount your usual E-series lens or your body protector cap onto your camera body.
Tags: your camera, lens mount, adapter mount, camera body, camera mount