Quickly find another solution:and    

Micro 4/3 body + Canon EF lens


The EF lens will be able to use its autofocus, external aperture control and speed booster function when mounted on a Micro 4/3 camera.

The "basic" adapter will create a simple mechanical contact between the EF lens and M4/3 frame. This means that you won't be able to adjust the aperture settings on the lens, since it's electronically adjusted. There won't be any autofocus either.

Find your adapter here:

A great solution to bridge this gap is obtaining an adapter with an additional diphragm. By mounting an adapter like this, you'll get to adjust the aperture settings despite the built-in EF will remain open all the time.

Find adapters with built-in aperture here:

Before you'd think it's just that, there are solutions to make up for the smaller sensor, a fullframe EF lens adapter with speedbooster (lens) "compresses" the image to fit the smaller sensor. Although the resolution will suffer a bit, but the new possibilities make up for the tradeoff.

Find some of those beauties here:

Would you like to use autofocus? Why not? There are adapters withsignal transmittingalso enabling aperture control.

You can find some AF adapters over here:

And if it's still not enough, there are alsocombined adapters with speedbooster lens and AF. The sky's the limit!

The cherry on top: there are flexible tilt-shift adapters which allows tilting the image plane while using an EF lens. Find them here:

Keep in mind that using a fullframe EF lens without a speedbooster will get you a crop factor of 2*, because of the tiny sensor of the M4/3 body, you'll get a pretty high focal length multiplier (you'll get a smaller image frame). Find out more about focal length in this article if you're interested.

Have you found an error, or would you like to share some insight about an item? Feel free to mail it to us, we appreciate your help in improving the site.

Share this solution!


In terms of compatibility, we distinguish four separate categories:

This means that you'll be able to apply the lens on the camera in question with a proper adapter, and full focus range will be available with it (often with aperture control too). If AF is supported, you'll see it in the description.
This means that due to the flange focal depth or other factor this conversion would be normally unfeasible, but with some compromises (e.g. using a speedbooster adapter) can be made possible.
This means that the flange focal depth should make mounting and using inifinty focus possible, but for some reason there are no adapter rings available or other factors make it unviable.
This means that you won't be able to mount your lens due to mechanical incompatibility or the difference in flange focal depth doesn't make inifinity focus possible. Although numerous lenses can be mounted on cameras without infinity focus, but this cannot be considered actual compatibility.

Additional information for compatible variations:

manual focus (on the lens, with its own control ring)
autofocus available (AF controlled by the camera body)
manual aperture control (on the lens, with its own control ring)
automatic aperture control (controlled by the camera body)
speedbooster (focal reducer) adapters are available
macro (variable length) adapters are available
tilt-shift (or other flexible) adapters can be used

If you'd like to read more in-depth about compatiblity, you'll need to get familiar with flange focal depth, see this article.