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State of the ART: The Little Lens That Could Read More

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Coding Zeiss lenses

Clive Woolls , May 20, 2013; 10:16 a.m.

With the exception of Voigtlander 50/1.1 & 15/4.5 all my lenses are Carl Zeiss ZM models. I hear a lot of talk about coding of lenses but as I exclusively shoot DNG is there any point in the excercise for me?

Responses

Alex S. , May 20, 2013; 11:07 a.m.

There is absolutely no point in coding lenses. Period.

Mirek Elsner , May 20, 2013; 12:05 p.m.

I assume you have one of the digital Ms, coding does not help on other cameras. The coding allows the camera to add lens specific data to DNG files to remove vignetting. The coding is specific for Leica lenses, but it apparently works well for non-Leica lenses as well. The results are most apparent on wide angle lenses.
http://www.l-camera-forum.com/leica-news/leica-lens-codes/
I never used Leica with Zeiss lenses, but it it my understanding that you can preview the effect if you use a non-coded lens and select specific Leica lens manually in the camera menu. Coding will do the same thing, but automatically.

Clive Woolls , May 20, 2013; 12:18 p.m.

Yes it is an M9-P.
Ok, I can see the use for the additional exif data, but as you say, one can select an appropriate lens manually ..... if one remembers.
Thanks for the link. I can note the appropriate Leica lens model for my Biogon/Planar ZMs.

James Elwing , May 22, 2013; 07:10 p.m.

One frequently fails to remember to change the lens in use via the menu.

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