Although I don't own a Leica at the moment (I did have an X1 once I have to confess that I put my deposit down on the new M a few weeks ago. Not expecting it to be available any time soon and I'm not even sure I'll go through with the purchase. I need to find a real one to try first! I'm just trying to gather some info at the moment and one of the things I'm not clear on is this bit coding for lenses. I see that some people pay to have their lens bit coded and I wonder if anyone can enlighten me regarding this. Do the new lenses come already coded?