Allowing you to mount a Canon EF lens on a Micro Four Thirds camera body, this Canon EF to Micro Four Thirds Lens Turbo Adapter Mark IIfrom Canon EF to Micro Four Thirds Lens Turbo Adapter Mark IIis a manual adapter that maintains infinity focus and image quality, and well as increases the maximum aperture and angle of view. Four elements are featured in the adapter's design, including one extra-low dispersion element, which helps to deliver a well-corrected image with edge-to-edge sharpness and illumination. This optical design also condenses the light reaching the sensor in order to gain one effective stop of light and increase the angle of view by 0.726x to somewhat lessen the crop factor of Micro Four Thirds cameras.

In addition to the optical design, this adapter features a durable metal housing along with stainless steel mounts for secure lens-to-adapter and adapter-to-camera connections. As a manual adapter, electronic communication, including aperture control and autofocus, is not supported between the camera and lens.

Canon EF Lens to MFT Camera    One Extra-Low Dispersion Element    Widens Angle of View by 0.726x    Increases Maximum Aperture 1 Stop    Durable Metal Construction    Stainless Steel Mounts

Permits mounting Canon EF lenses on Micro Four Thirds mirrorless cameras.

Four elements in four groups design, including one extra-low dispersion element, maintains sharpness and clarity from edge-to-edge.

Optical design condenses the light reaching the sensor to effectively gain one f/stop of light and increase the angle of view by 0.726x.

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Durable metal construction with stainless steel mounts.

Related Questions and Answers

Q: 1. Is there any aperture control?

A: The aperture will be wide open. The Canon 50mm f/1.4 will be f/1.4.

Q: 2. WILL IT WORK WHIT 18 TO 250 DC 3.5- 6.3, SIGMA LENS?

A: You may mount the Sigma 18-250mm F3.5-6.3 DC Macro OS HSM for Canon EF Mount onto the Mitakon Zhongyi Canon EF Lens to Micro Four Thirds Camera Lens Turbo Adapter Mark II. However, do note that the Mitakon Zhongyi Canon EF Lens to Micro Four Thirds Camera Lens Turbo Adapter Mark II is designed for use with full-frame lenses, so using the Sigma 18-250mm F3.5-6.3 DC Macro OS HSM for Canon EF Mount (which is designed for the smaller APS-C sensor) will have a smaller image circle on your sensor, and may require you to crop in on the image during post-production when using your computer to edit the image. Also note that the Lens Turbo Adapter Mark II is a fully manual adapter, so electronic communication, including aperture control and autofocus, is not supported between the camera and lens. As neither the lens nor the lens adapter have a built-in aperture ring, this means you will not be able to control the aperture of the camera, so you will be stuck with using the lens’ largest aperture when using this adapter with the aforementioned Sigma lens. With the exception of the above issues, yes, you can connect the lens to the adapter and use the setup on a Micro Four Thirds camera.

Q: 3. I dont understand, I have a panasonic gh4 and the manual focus on my canon lenses doesn't even work with this adapter.. please help?

A: Hi,Your Manual Focus needs to be mechanical in order to work with this adaptor. Electronic Manual focus won't work.

Q: 4. Trying to adapt samyang ef mount lenses to my GH5. Had a problem with similar focal reducers not being able to focus to infinity. Has anyone tried this combo that could put my fears to rest?

A: I doubt restrictive focus would be a problem. I am using this adapter with a few EF lenses of different manufacture. I've not encountered that issue.

Q: 5. I have just ordered the Lumix G7 and have a Canon EF 24-105 I wish to use with this adapter. Will the 24mm become 17 mm (0.726) or 34mm because of the MFT 2.0 factor?

A: The crop factor is 2.0 in Full HD and is like 2.3 in 4k so you can multiply 2.3 x .726 = 1.67So 24 mm x 1.67 = 40 mm in 4K.

Q: 6. Is there a Mitakon M43 to Yashica/Contax adaptor?, I don't see one here.

A: The Micro Four Thirds (M43) sensor is much smaller than 35mm film. The imaging circle of a Micro Four Thirds lens would not cover the 35mm film frame, and as such (ignoring the focal flange distance differences), there are no adapters that will allow you to connect a Micro Four Thirds lens onto a camera that uses the Contax/Yashica lens mount.If you were instead looking to connect a Contax/Yashica lens onto the smaller Micro Four Thirds lens mount, while there are no options made by Mitakon Zhongyi, the FotodioX Pro Lens Mount Adapter for Contax-Yashica Mount Lens to Micro Four Thirds Mount Camera, B&H # FOPLMAC6YM43, would work for your usage needs.

Q: 7. I recently got this adapter for my GH4 and my Rokinon EF cine lenses. Im happy with the optics but the lens fit so tight in lens turbo. You have to apply a lot of pressure to twist the lens out after the pin is released. Im worried it may be scratching or grinding away the metal mount on my lens. Is this normal or is it possibly a defect with the specific lens turbo that I have?

A: I had the same problem, it gets easier the more you attach and remove lenses. The pin issue might be a good reason to return it, you probably got a bad spring

Q: 8. The description says that this adapter covers apsc size sensor lenses maximum. Does that mean it wont work with my full frame ef lenses? Or is it talking about the camera youre adapting tos sensor?

A: This is referring to the camera you are using. This is a focal length reducer, it works by taking the large image circle of full frame lenses and making It smaller, hence reducing the apparent focal length on an APS-C or M43 lens.

Q: 9. Will a Canon 10-18mm work with this adaptor & G85?Speifically, wii the lens be usable throughout the whole zoom range?

A: This lens adapter is the best friend of any full manual lens. So if any lens has data contacting pins then it will not fully work on this adapter. In this case, your 10-18 may can't work fully as you lose the aperture control. Recommendation: go with Metabone Speedbooster instead.

Q: 10. Will this adapter work with the Blackmagic Micro Cinema camera?

A: Yes, this adapter is compatible with the Blackmagic Micro Cinema Camera.