K&F Concept OM-L – Olympus OM Lens to L-Mount Mount Adapter

The K&F Concept OM-L adapter mounts lenses with the Olympus OM mount on cameras with the L mount. It is purely mechanical, with no electronic contacts: focusing is done by hand on the lens and the aperture is set with the lens aperture ring, while infinity focus is retained. The all-metal adapter is precisely machined.

Olympus OM lenses on L-Mount bodies

With the OM-L adapter, Olympus OM lenses can be used on a modern L-Mount body with everything it offers – a viewfinder with magnification for precise manual focusing, sensor stabilisation if the body has it, and current recording formats. The length of the adapter matches the difference in flange distance between the two systems, so the lens focuses across its whole range, all the way to infinity.

Solid metal construction

The adapter is all-metal, made of copper and aluminium alloy. Precise machining ensures a firm connection without play. A red dot shows how to align the adapter with the mount, making mounting and removal quick and accurate.

Manual focus and aperture

The adapter has no electronic contacts and the camera does not recognise the lens – autofocus, aperture control from the body and lens data in EXIF do not work. Focus with the ring on the lens; magnification or focus peaking in the viewfinder makes precise focusing easier. The aperture is set with the aperture ring on the lens; lenses without an aperture ring cannot be stopped down with this adapter.

First use

Before the first shot, enable shutter release without a lens in the camera menu (on Sony “Release w/o Lens”, a similar option on other brands). Otherwise the body will not treat the adapter without contacts as an attached lens and will not release the shutter.

L mount

The L mount was developed jointly by Leica, Panasonic and Sigma. Do not confuse it with the Leica M and Leica R mounts – these are three different systems, so check the mount of your body before buying.

Compatible cameras

Leica SL, SL2, T, TL, TL2, CL, Panasonic Lumix S1, S1R, S1H, Sigma fp and other bodies with the L mount.