Archived posting to the Leica Users Group, 2008/01/31

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Subject: [Leica] one of the most important news for me
From: leica at screengang.com (Didier Ludwig)
Date: Thu Jan 31 08:17:14 2008
References: <440b792d0801302347oab5fedbsee102cf4c960eff5@mail.gmail.com> <20080131082938.B3A21305BA@donald-1.hostspirit.ch> <A99E080F-308B-48D0-89E2-F8E20CA42510@comcast.net>

Yes. Sigma counts R and G and B values for each pixel. This way my R-D1 
would be a 18 megapix camera. Gorgeous!
:-)
Didier


>Remember, too, this is really a 4.6 megapixel camera (2640 x 1760),  
>despite Sigma's claims.
>Regards,
>
>Dick
>
>
>
>On Jan 31, 2008, at 3:29 AM, Didier Ludwig wrote:
>
>>Mehrdad
>>
>>A pocketable travel camera with a fixed wide angle lens is  
>>interesting in any case, but there are some issues with the Sigma  
>>DP-1:
>>
>>- slow lens: f4 is disappointing for such a concept
>>- partially outdated specs since the camera has been announced one  
>>and a half year ago (sept 2006)
>>- and unfortunately, Sigma could not take much advantage in terms of  
>>high ISO behaviour out of this foveon sensor, which is also used in  
>>the already released Sigma SD14 dslr. There's visible noise already  
>>at ISO200, see http://tinyurl.com/33fh8t (frontside of speakers  
>>desk), but my impression is it's slightly better than the Ricoh GR- D. The 
>>fact it does not offer higher ISO than 800 looks like Sigma  
>>admits 1600 would be useless.
>>
>>The main advantage of the foveon sensor seems to be the better  
>>dynamic range. Btw this sensor has not DX format, but is smaller  
>>(1.7 crop factor not 1.5)
>>
>>Practical tests, handling and 1:1 comparisons with the GR-D II will  
>>tell us more. Meanwhile, I pack my R-D1 with a CV wide
>>
>>Didier
>>
>>
>>
>>>is the sigma DP-1 camera
>>>http://www.dpreview.com/news/0801/08013108sigmadp1.asp
>>>dx size cmos in a pocket camera!!


Replies: Reply from meino at innerside.demon.nl (Meino de Graaf) ([Leica] one of the most important news for me)
In reply to: Message from msadat at gmail.com (mehrdad) ([Leica] one of the most important news for me)
Message from leica at screengang.com (Didier Ludwig) ([Leica] one of the most important news for me)
Message from r.s.taylor at comcast.net (Richard Taylor) ([Leica] one of the most important news for me)