Archived posting to the Leica Users Group, 2009/10/19

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Subject: [Leica] 6 Bit Coder?
From: pklein at (Peter Klein)
Date: Mon, 19 Oct 2009 22:44:26 -0700
References: <>

Greg:  I use it, in fact, I was a beta tester.  It comes with an 
oil-based industrial marker that is much longer-lasting than a Sharpie, 
but tends to dry out after a while.

The coder works well, with some caveats.

- The marks eventually wear off and you have to redo them.
- Some lenses mounts wear off faster than others.  You just have to try 
it and see.
- If the alignment of the coder template isn't exact, you may have to 
thicken the marks slightly in one direction or another. Once you figure 
this out, it's consistent.
- If the lens mount has a screw in the coding area, you might have to 
paint it with white model paint or nail polish, and then perhaps code 
over that.  Check your lenses.

Obviously, Leica coding or Milich milling are a more permanent 
solution.  That said, I self-code my 35/1.4 Summilux, rather than send 
it to Leica or Milich and risk messing up a tight focus tolerance. I've 
also coded my tabbed 50 Summicron with it.

Some people have had better luck (or is it skill?) than others. I'm 
happy with mine.


> Greg Lorenzo wrote:
> Anyone have experience with one of these?
> If so, does it work?
> Greg Lorenzo
> Calgary, Canada