Archived posting to the Leica Users Group, 2006/07/13

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Subject: [Leica] 6 Bit Coding on Lenses
From: ekowaleski at (Ed Kowaleski)
Date: Thu Jul 13 08:25:02 2006
References: <001301c6a689$8207d6c0$6601a8c0@FrankDell2> <>

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
----- Original Message ----- 
From: "Didier Ludwig" <>
To: "Leica Users Group" <>
Sent: Thursday, July 13, 2006 10:45 AM
Subject: Re: [Leica] 6 Bit Coding on Lenses

> Frank
> 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
>>Statements from Leica today......
>>"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 
>>Frank Filippone
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Replies: Reply from don.dory at (Don Dory) ([Leica] 6 Bit Coding on Lenses)
Reply from red735i at (Frank Filippone) ([Leica] 6 Bit Coding on Lenses)
In reply to: Message from red735i at (Frank Filippone) ([Leica] 6 Bit Coding on Lenses)
Message from rangefinder at (Didier Ludwig) ([Leica] 6 Bit Coding on Lenses)