[Leica] Lens coding

[j2m46 at hotmail.fr (Jean-Michel Mertz)]

The lenses I use on my M8 are not coded. I just take pictures and they seem 
to come out properly. I also use a few legacy non coded lenses on Fuji X 
bodies with  adapters (Fotodiox and others): no problem. JM

Jean-Michel Mertz
68750 - Bergheim

________________________________
De : LUG <lug-bounces+j2m46=hotmail.fr at leica-users.org> de la part de 
Peter Klein via LUG <lug at leica-users.org>
Envoy? : vendredi 22 mars 2019 10:04
? : lug
Cc : Peter Klein
Objet : [Leica] Lens coding

To fellow digital M users:  What do you folks do about lens coding?

Some of my lenses are coded, some aren't.  My general sense is that 35mm
and shorter lenses need to be coded to avoid cyan drift in the outer
regions. But for 50mm and longer, it doesn't matter much unless one
cares that the EXIF data contains the correct focal length. I've found
that when I'm changing lenses in fast situations, I can't count on
always changing the manual lens ID in the menu.

I'm planning to get a couple of Fotodiox PRO adapters for my 50 and 90mm
LTM lenses.  Their reviews on the B&H site seem to be mostly positive,
unlike some other brands. Can anyone here verify this or suggest a
better alternative?

As for my still uncoded M-mount lenses, I'm torn between coding them
myself, leaving them alone, or getting them coded professionally.
Choices include:

- Have Leica do it, at I believe, $300 dollars a pop.
- An independent repair person like DAG, or, who else?
- Buy lens flanges with coding pits from eBay and install and paint them
myself. (beware Chinese quality control?)
- Using my M coder template and an oil-based industrial marker to code
the lenses myself. I've done this before, but it is painstaking,
requires some trial and error, and has to be redone periodically.

Advice based on personal experience would be appreciated.  Thanks!

--Peter

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