[Leica] 6 Bit Coding on Lenses

[lug at steveunsworth.co.uk (Steve Unsworth)]

The letters DxO come to my mind - as they have to some one on the  
Leica Forum.

Not official, so you're probably not interested.

Steve

On 13 Jul 2006, at 19:46, Frank Filippone wrote:

> Precisely what I asked.......   Data is not theory or rumor or  
> speculation, it is hard facts.
>
> Does anyone have any data?  What is the camera doing to correct/ 
> amend/change/augment/etc.  anything?
>
> If the 6 bit code does have specific in-camera functionality, how  
> does one get that same result if you use an uncoded lens of the
> same but older vintage  ( Thinking for example now of the 24  
> ASPH )?  Without the coding, the camera does not do something and
> afterwards nothing can retro-fix the corrections into the image?
>
> Let me make a comment.... it would be smarter to allow for  
> corrections in some PS or other plug-in ( or even allow for the  
> download
> software make these changes) than to do anything in the camera.  It  
> would save batteries, make changes in algorithms more flexible,
> allow for third party support, make the camera faster to operate,  
> make the camera cheaper to manufacture ( smaller dumber uP) and
> generally, make life more manageable.
>
> But Leica is not an acronym for customer service.......
>
>
> Frank Filippone
> red735i@earthlink.net
>
>
>
> I know that there has been speculation that the "6 bit" code will  
> probably
> have something to do with vignette correction within the camera. Leica
> refers to "Image Optimization: without getting specific (at least  
> in what I
> have read).  Does anyone know authoritatively what the code does to  
> the
> image (not the Exif or metadata) in the camera?
>
> Ed K
>
>
>>
>> I think that was largely discussed here a few weeks ago. The M  
>> digital's
>> in-camera software will use different anti-vignetting and other
>> postprocessing algorithms, depending on which lens is used.
>>
>> Didier
>>
>>
>>> "Lenses in the current range as well as many earlier models can be
>>> retrofitted at the cost of the owner to benefit from the image
>>> optimization in the camera."
>>>
>>> "Apart from the improvement in image quality, this information is  
>>> also
>>> written into the EXIF image file."
>>>
>>> There is a more than passing comment that the camera itself does  
>>> something
>>> with the coding from the lenses.  Do we have any data
>>> that tells us what?  ( apart from recording it into the EXIF data
>>> locations).
>>>
>>> Frank Filippone
>>> red735i@earthlink.net
>>
>> on
>
>
>
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