Archived posting to the Leica Users Group, 2008/01/31
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]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- partially outdated specs since the camera has been announced one 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!!