Archived posting to the Leica Users Group, 2007/06/07
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Or, you could buy an M8 with a V/C 40mm and have a fabulous camera that would mostly fit in a pocket with great results at ISO 1250. The way M8's are going the depreciation would be less than buying the P/S outright. I think I will sign off now as I've just caused enough trouble. On 6/7/07, Nathan Wajsman <nathan@nathanfoto.com> wrote: > > That was exactly my point. I am sure the Sigma sensor is better than > the GRD's, since it is so much bigger. But let's say that I am > shooting in a situation where I need to set the GRD at f2.4 and ISO > 400 to obtain a handholdable shutter speed. With the Sigma, I would > need to set an ISO of 1000 in the same conditions because the lens is > 1 1/3 slower. So the relevant question for me is whether the Sigma > sensor at 1000 is better than the Ricoh sensor at 400. And that is > not guaranteed. And besides, I already have the Ricoh, while the > Sigma is vaporware at this point :-) > > On 7-jun-2007, at 16:33, Rei Shinozuka wrote: > > > seems interesting, but why is the lens so darned slow? > > > > -rei > > > > On Jun06 22:27, mehrdad wrote: > >> nathan did u also look @ the sensor size difference between the grd > >> and dp-1? the dp-1 is APS size and very capable @ shooting high > >> iso if > >> it is the same as sigma's latest sd-14 camera. people are compering > >> the results of the sd-14 with the canon 5d. > >> > >> On 6/6/07, Nathan Wajsman <nathan@nathanfoto.com> wrote: > >>> I printed out the PDF from the web site and drooled all over it > >>> until I > >>> realized that there is a fly in the ointment: the slow (f4) lens. > >>> Compared to my Ricoh GRD's f2.4 lens, this means that the Sigma > >>> is about > >>> 1 1/3 stops slower. Or put in another way: if I am in a situation > >>> where > >>> I need to use the Ricoh wide open at ISO 400 (the highest usable > >>> ISO on > >>> the GRD in my opinion), I would need to set the Sigma to ISO 1000 > >>> in the > >>> same situation. So while I am sure that the Sigma's sensor is > >>> superior > >>> to the Ricoh's at the same ISO, that is not the relevant > >>> comparison for > >>> me. The Sigma at ISO 1000 would need to be superior to the Ricoh > >>> at ISO > >>> 400. I think I'll wait for some reviews... > >>> > >>> Nathan > >>> > >>> Douglas Sharp wrote: > >>>> The photographic magazines in Germany have it priced at 700 Euros - > >>>> not cheap for a P&S - but I think I want one anyway :-) > >>>> Douglas > >>>> > >>>> Jeffery Smith wrote: > >>>>> Some of us are waiting on the Sigma DP1. Sigma has given it its > >>>>> own web > >>>>> site: > >>>>> > >>>>> http://www.sigma-dp1.com/ > >>>>> > >>>>> but so far it hasn't been released. > >>>>> > >>>>> Jeffery > >>>>> > > > > > > -- > > Rei Shinozuka shino@panix.com > > Ridgewood, New Jersey > > > > > > _______________________________________________ > > Leica Users Group. > > See http://leica-users.org/mailman/listinfo/lug for more information > > > > Nathan Wajsman > nathan@nathanfoto.com > General photography: > http://www.nathanfoto.com > http://www.greatpix.eu > http://www.frozenlight.eu > Picture-A-Week: http://www.fotocycle.dk/paws > Blog: http://www.fotocycle.dk/blog > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > -- Don don.dory@gmail.com