Nikon body + Canon FD lens
PARTIALLY COMPATIBLE MF MA
This shouldn't work in theory due to the difference in flange focal depth, but...
You can read about the compromises of speedbooster adapters in this article more detailed.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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