Archived posting to the Leica Users Group, 2008/01/31
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]See http://www.steves-digicams.com/techcorner/aug_2007.html Regards Meino Didier Ludwig wrote: > 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 - partially outdated specs since the camera has been announced one 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!! > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > >