Originally Posted by Doug
Sorry to hear that John has passed away... He milled several lens flanges for me, one new lens sent directly to him from the vendor, the rest sent via DAG. Don would remove the flanges and send them to John, then reassemble and mark the coding before returning to me. I would expect DAG has an alternative source for the machining...
John Milich's company is still in business - including the 6-bit coding operation. But you must go through DAG. The current owner will not take orders otherwise. Cost is around $75 (originally $25), but still a bargain compared to what Leica charges (~$300).