How to use your Canon FD (FL) mount lens on a Micro 4/3 camera body?

Micro 4/3 body + Canon FD lens

COMPATIBLE MF MA SB TS

Fortunately the flange focal depth allows conversion.

The FD is an SLR system, therefore has a lot of room allowing conversion to M4/3 mirrorless. The only tricky part is the FD bayonet's aperture switch: this is a ring on the lens which allows opening and closing the diaphragm of the FD lens regardless of its pre-set value. Don't forget to open it to avoid funny surprises.

Find your adapter here:

Speedbooster versions also do exist, which is not very surprising, given that the FD is a fullframe lens, while the M4/3 has a tiny sensor (with a crop factor of 2*). This means if you'd like to avoid that cropping and don't mind some resolution loss due to the additional lenses, this is your adapter:

There are also tilt-shift adapters for M4/3 body and FD lens, which can be found here:

Keep in mind that using a fullframe FD lens (without 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.

The "Canon FD bayonet" may actually refer to three different things, and although these mean no difference in using the adapter, they're worth a mention. The FL bayonet was the predecessor of the FD and could have been fitted on cameras (and adapters) using the FD bayonet lock. The FD bayonet has two versions: FD and nFD. The original FD has a breech lock, which means that only the silver ring on its end of the housing moves when fixing it (it doesn't have a lug, it tightens onto the bayonet lock). In the case of the nFD the whole housing of the lens turns when fixing (similar to a modern EF lens), but the bayonet itself doesn't turn inside the compartment (and has a safety release as well). There are 134 types of FD and 33 types of FL lenses, all of which can be with all kinds of FD adapter rings.

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