Archived posting to the Leica Users Group, 2014/01/02
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Doesn't the camera make a second, shutterless "exposure" when it can and use it to subtract out the noise? On Jan 2, 2014 2:34 AM, "Gerry Walden" <gwpics at icloud.com> wrote: > I find that noise levels vary tremendously depending on (a) getting the > right exposure, and (b) the colour content of the image. > > Gerry > > Gerry Walden > +44 (0)23 8046 3076 or > +44 (0)797 287 7932 > www.gwpics.com > > On 2 Jan 2014, at 05:10, John McMaster <john at mcmaster.co.nz> wrote: > > > Exaggerating by a factor of 10? > > > > john > > > >> -----Original Message----- > >> > >> I have a Lumix DMC-LX5 that I bought from a LUG member. It's ISO goes up > >> to an apparently ridiculous ISO 128,000. The picture I recently > published (Cat > >> Bed) was shot as ISO 32,000. It was noisy as hell and I had to apply > much LR > >> noise reduction to it. > >> > >> On New Year's Eve I took a bunch of shots in a dimly lit restaurant at > 128,000. > >> They showed absolutely no noise when viewed in LR at 1:1. When I > >> discovered this, today, I took a set of test shots from ISO 8000 through > >> 128000 at the same aperture. The shutter speed doubled at each step as > it is > >> supposed to. Again, when I examined the shots, the noise peaked sharply > at > >> ISO 32000 an fell off at either side of it. > >> > >> I'm delighted to be able to shoot at 128000, but I ask: "What the hell > is going > >> on?) > >> > >> Herb > >> > >> Herbert Kanner > >> kanner at acm.org > >> 650-326-8204 > >> > > > > _______________________________________________ > > Leica Users Group. > > See http://leica-users.org/mailman/listinfo/lug for more information > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information >