The FotodioX T-Mount to Olympus 4/3 Camera Adapteris for use with your T-Mount lens to Olympus 4/3 (OM4/3 or 4/3) Mount Camera. Manufactured to high tolerances, the adapter facilitates focus to infinity and beyond. Photographers will appreciate the hardened anodized aluminum construction.

Fits Select T-Mount T/T-2 Screw Mounts    Focus to Infinity or Beyond    All-Metal Design    Anodized Aluminum Construction

Olympus 4/3 Mount Cameras
Popular models include:
Olympus E-1, E-3, E-10, E-20, E-30, E-300, E-330, E-400, E-410, E-420, E-450, E-500, E-510, E-520, E-600, E-620, E-100 RS
Panasonic Lumix DMC-L10, L1

This is a manual adapter, so lens functions that rely on electronic communication with the camera body (autofocus, AE metering, image stabilization, etc.) will be disrupted.

Set your exposure manually or meter using your camera's Aperture Priority (stop-down) mode.

If your lens does not have a manual aperture control ring, it will stop down to its smallest f/stop by default.

Related Questions and Answers

Q: 1. will this work on olympus 50 mm 1.4?

A: As long as your Olympus 50mm f/1.4 has the OM mount, you could use it with this adapter to mount the lens on a Nikon F Camera.

Q: 2. Is this comparable with the pentax me super

A: The Fotodiox OM35-PK-PRO is compatible with the Pentax ME Super body.

Q: 3. FotodioX Pro Adapter for Select Olympus Zuiko OM Lens to Nikon F-Mount Camera, fits the nikon d3300?

A: Yes, the Fotodiox Pro Adapter for select Olympus Zuiko OM Lens to Nikon F-mount Camera would allow you to connect manual-focus Olympus OM-mount lenses to the Nikon D3300 DSLR camera. Do note that, as indicated under the Overview for the lens adapter, some Olympus OM lenses (typically wide angle lenses) have a shield that protrudes from the rear of the lens. This shield will prevent the lens from mounting on the adapter. Also note that you would have to use the Nikon D3300 DSLR camera in full manual mode when using this adapter.

Q: 4. Will this work on a M10 mark III?

A: No, this is a 4/3 adapter and not a micro 4/3 adapter. Please click the link below to view the correct adapter; https://bhpho.to/37BQyeH

Q: 5. What process is necessary for focusing the lens? Should you open the Aperture wide open for focus and then manually stop down prior to expose?

A: that's right you open the Aperture wide for you to be able to see better for focus and then you stop down for exposure and depth

Q: 6. Would this adapter be used Olympus OM lens (not 3/4 OM lens) to Pentax K-Mount cameras? and my camera is Pentax K7. Thanks.

A: The Olympus OM lens mount is Olympus' older manual-focus only lens mount. The Olympus Four Thirds lens mount is Olympus' DSLR autofocus lens mount (the current mirrorless cameras use the Micro Four Thirds lens mount). The Olympus OM Pro Lens Adapter for Pentax K-Mount Cameras listed above is designed to attach the older Olympus manual focus only OM-mount lenses onto the Pentax K-mount cameras, such as the Pentax K-7 DSLR camera.

Q: 7. Will this fit an olympus mount sigma 28mm f2.8 to go on a nikon d3200?

A: The answer is No and Yes. I have a Nikon D90 and the FotodioX Pro Adapter fits my Nikon so should fit yours. I really like that it allowed me to use my 135 mm olympus lens, which has been unused for the last decade. There is a plastic projection that sticks out of the camera side of the 28mm, 50mm, and 2x multiplier lenses (I own all three) making the FotodioX unusable . . . HOWEVER, if you buy something like the vivitar extension tubes then you can put the Fotodio on the camera, then the extension tube, then any of the above listed lens to include the 28mm f2.8. A problem is that this sets up the 28mm for use as a macro lens. A slight work around is to put the FotodioX, the Vivitar extension, the 2X multiplier and then the 28mm or the 50mm. This allows you to take close ups of fingers, but not hands, smiles but not faces, thus also a macro only lens. So the answer is mostly no, but partially yes in that with the extension tubes you can use the lenses as macro lenses for close ups. Perhaps a nice side use if your main purpose is to use your 135mm, but probably not worth buying just for the 28mm. Hope this helps! Thanks for everyone else's comments, I'm sure they helped me in the past and will help me in the future.

Q: 8. Is the optical unit removable for macro use?

A: The optics are an integral part of this adapter and cannot be removed without damaging the unit.

Q: 9. Will this work for a Tamron 80-210mm lens on an Olympus PEN E-PL5 camera?

A: It won't work because this is for a four thirds camera and the PL5 has a different mount. The PL5 is micro four thirds mount.

Q: 10. I want to use my Olympus Zuikko 50mm f1:4 lens in a Nikon d5300. Will this adapter works for me?

A: Yes,it works for me. manual focus only