Third Party Lens Coding

[1066]

1.) Is there any 3rd party that can do the 6-bit coding on Leica lenses?

2.) Does coding affect focus? (I can't recall where, but I read that it does)

3.) Any info on something called the "pen method" of coding?

Thx...

Bat

 

[Roger Hicks]

It's patented, so no-one can do it fully and legally, though there are some fudges around.

Cheers,

R.

 

[Bill Blackwell]

Contact John Milich (Queens, New York)

jm@milich.com

He will code your M lens mount for $25 (you fill in the paint).

 

[jaapv]

1.) Is there any 3rd party that can do the 6-bit coding on Leica lenses?

2.) Does coding affect focus? (I can't recall where, but I read that it does)

3.) Any info on something called the "pen method" of coding?

Thx...

Bat

1. See above. And if you supply a template, any competent machine shop can do it for you. I know one dental technician who coded all his lenses himself. (i.e. BenZ)
2. No it does not. However, as Leica exchanges the mount for a coded one, it may be that in exceptional cases the tolerances may affect the focus. In 99.9 % of the cases there is no difference, except for the better. Leica checks and repairs the lenses as they come in.
3. You make the appropriate black marks on the lens mount yourself and the camera is fooled into thinking it is a coded lens.
I'll add a 4.
If you are not hung up on getting the focal length in your EXIF data, coding is not needed for lenses of 50 or longer, as there is no need for the camera to apply corrections to the image.

 

[Bill Blackwell]

Also look here:

http://www.popflash.com/index.php?p=product&id=2681&parent=38

 

[etrigan63]

There is one error on the Popflash page. The manufacturer is Match Technical (Tim Isaac) not "Generic". http://www.matchtechnical.com

 

[Doug]

Glad to see PopFlash carries the Match Technical coder, as it seems like a good though temporary solution.

 

[gurtch]

Coding of Zeiss ZM lenses?

Coding of Zeiss ZM lenses?

I have several Zeiss ZM lenses. Can anyone mill out notches in the flanges to "fool" the M8?
Dave G
Beach Haven, NJ

 

[Doug]

Much of your answer in posts #3 and #4 above. Also, if you send your lens to DAG Camera Repair for service, he offers 6-bit coding as well, and a focus calibration adjustment as needed. Some of my ZM lenses are at his shop now for this.