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The
BR-2A Lens Reversing Ring allows any 52mm front thread size lens to be reverse-mounted onto a Nikon body (or bellows).
Note that the other version of the Lens Reversing Ring, the
BR-2, can only be used with the
manual bodies that DO NOT HAVE the electronic contacts found on the old and new AF bodies (excluding the F3AF).
The BR-2A adaptor has been designed specifically for AF bodies, while still compatible with the older MF bodies, by ensuring that the lens' electronic contacts do not come into contact with the adaptor when it is mounted onto the camera body.
Questa la foto del BR-2a

Spero di esseri stato di aiuto
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