2 adapters together

Started May 4, 2011 | Discussions thread
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paultakeda Senior Member • Posts: 1,782
M42 is 45.46mm.

If M42 was the same register as EF it would be highly improbable to have an M42-> EF adapter that guaranteed infinity focus.

It's already surprising an M42-> EF adapter exists as the distance difference is 1.46mm, but that may be because M42 is a screw mount rather than bayonet.

With that plus an EF-> MFT adapter that's basically a 24mm extension tube and you have the correct register to mount the lens on MFT.

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