[Leica] Coded or non coded lenses, that is the question

[john at mcmaster.co.nz (John McMaster)]

Here is an extreme example, Zeiss ZM 15mm uncoded, then coded as 21mm 2.8 
pre-asph and 28mm f2.8 asph

http://johnmcmaster.com/Zeiss15mm/

john

-----Original Message-----

Hello Frank,

thanks for that, it's all good news to me, doubly appreciated. 
I was afraid of that but needed to hear from someone else. 

Now, what are those changes about with lenses under 35 mm.
That sounds scary to me, is it any thing you can turn on/off or the camera 
does that on default/automagically  ? 


On Apr 5, 2014, at 8:24 PM, Frank Filippone wrote:

> Simple... the camera does no changes to the image from 35mm and up.  
> 28 and below, and the camera applies some image corrections, depending on 
> the lens.
> 
> Otherwise, the only difference is that without the coding, the camera 
> can not place any info in the EXIF file about the lens being used.
> 
> All of this is irrelevant if you wish to tell the camera which lens is 
> mounted (manual lens input through the LCD and Menu) .. and then it 
> all works as if the lens were coded....
> 
> Look at the back of your lens... if there are 5 or 6 screw heads on 
> the lens flange, it probably can be coded by changing out the flange.  
> ($20 or so from EBay) You may require re-collimation if the lens does 
> not focus correctly... DAG charges about $125 for collimation.....  
> Leica, if you decide to go that route, charges $300 or more to do the 
> entire job,.....