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This is the Leica 2x Apo-Extender with ROM contacts.

Unfortunately, it is more difficult and expensive to convert than the non ROM model.

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First, unscrew the black shroud small screws.
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Help yourself with the plastic tool to remove it.
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it is not possible, we have to unscrew the bayonet
.
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and moving a bit the bayonet we can free the shroud
.
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But the ROM strip is attached to the interiors with a flat cable
.
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So we have to unscrew the ROM contacts strip.
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Which is not enough, there is a plastic piece that holds the cable too.
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I've removed that piece too, but may be it is  not necessary after all.

The flat cable could pass between the plastic piece and the bayonet moving it a bit.
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As you can see here, the Leica bayonet has a extra machining to avoid pressing the flat cable
.
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So I had to machine one of my Leitax bayonets to  save the cable, also made the internal diameter bigger to make room for the ROM strip.
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Our ROM APO-Extender is now ready to be used in Nikon cameras.


This extra work can be made on the Leitax bayonets for other brands.
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Leica lenses can be used now attached to it.


I would recommend you to find a non ROM Apo-Extender, so you could use the standard Leitax bayonet.

If you have this model already, please contact me for an estimate of the special work
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