Coding Question and M9

[MartinL]

I just came across this article and it helped me understand better the "Data transmission between camera and lens." But the article drives home how much I still don't understand. http://www.berndmargotte.com/technical/objektivcodierung_en.html
I searched the forums for the author, Margotte, but didn't come up with any discussion.

Question:
For my M9, what benefit do I get from coding my 2 Voightlanders, or my Summilux 1.4 pre-asph above and beyond using the manual lens selection? As far as shot workflow, I find the Manual setting very fast and easy, so put aside convenience as a factor. I had though that the M9's lens menu would get me spot on for the Summilux, and as close an approximation as coding would get me for the Voits. But is there more going on with the coding than with simply identifying the lens?

 

[furcafe]

My understanding is that the coding will activate some in-camera corrections for some of the wide/super-wide lenses.

Otherwise, just a convenience & for accurate EXIF data.

I just came across this article and it helped me understand better the "Data transmission between camera and lens." But the article drives home how much I still don't understand. http://www.berndmargotte.com/technical/objektivcodierung_en.html
I searched the forums for the author, Margotte, but didn't come up with any discussion.

Question:
For my M9, what benefit do I get from coding my 2 Voightlanders, or my Summilux 1.4 pre-asph above and beyond using the manual lens selection? As far as shot workflow, I find the Manual setting very fast and easy, so put aside convenience as a factor. I had though that the M9's lens menu would get me spot on for the Summilux, and as close an approximation as coding would get me for the Voits. But is there more going on with the coding than with simply identifying the lens?

 

[Godfrey]

The advantage to coding is that if there is a code which helps a particular lens performance with better geometric or color correction, it saves some time in post processing. It also embeds a focal length into the EXIF metadata for each frame, which is occasionally useful.

Using manually input codes does the same thing, but you risk forgetting to set the correct codes when doing it manually. Not much of an issue if you don't change lenses frequently, or if you don't care, but some folks tend to changes lenses a lot more than others.

One thing to be sure of, tho, is that if you do set lens codes, set ones that don't negatively modify the rendering for your lens. The corrections are applied to the raw data so a poor choice could be worse than using none at all.

G

 

[MartinL]

Using manually input codes does the same thing, but you risk forgetting to set the correct codes when doing it manually.

a poor choice could be worse than using none at all.

Is this correct? ----
There is no code that can be applied to a non-coded lens that will improve performance beyond one of the 36 programmed manual choices in the M9.