[Leica] Digital Leica M

[henningw at archiphoto.com (Henning Wulff)]

>In the case of Epson there is software co correct for the 
>Voigtlander lenses which is pre-set. There is a control in the raw 
>convertor to variably adjust non Voigtlander lenses by eye. 
>Interestingly the precise design of the lens must have a bigger 
>impact than its focal length because the 12mm vignettes considerably 
>less than the 15mm.
>I'm sure somebody has published some comparisons on the web.
>Frank

 From a year and a half ago:

http://archiphoto.com/Various/RD1vignette/index.htm


>On 15 Jun, 2006, at 17:07, Ed Kowaleski wrote:
>
>>
>>The software that accompanies the RD-1 has a provision for the correction 
>>of
>>the effects of vignetting.  I assume Epson calculated that a 15mm lens 
>>would
>>vignette so much, a 21 this much, and a 24 that much, etc., and provided
>>image correcting software accordingly.  As far as I can see, it works quite
>>well.
>>
>>Now, it seems suddenly, Leica says, "Oh, by the way, you might want to have
>>these bar codes put on the inner face of your M-lenses so you can capture
>>data that tells you which lens was used."  There is more than a  
>>veiled
>>implication that this will also impact image quality because Leica's
>>statement said that these codes would "help optimize image quality".
>>Further, they stated that owners of lenses produced after July 1, would
>>"benefit from the image optimization" resulting from the retrofit
>>application of these bar codes.
>>
>>So there appears to be more at stake that just adding metadata and there
>>seems to be a clear suggestion from Solms that one had better get the bar
>>codes put on pre July 1, 2006, lenses or live with some pretty expensive
>>junk.  It sounds as if they've invented a Leica M that in fact cannot use
>>older lenses without  some lack of image optimization. Or, is this their
>>solution to the Vignetting problem and rather than take the Epson route by
>>fixing the vignetting in software, they have seen this as a profit
>>improvement program? I would think that lots of lenses at 95 Euros each
>>results and a significant Euro flow
>>
>>Please, someone tell me I've misread Leica's statement.
>>
>>Ed Kowaleski
>>

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