Archived posting to the Leica Users Group, 2014/01/02
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Yes, but this behavior was consistent on a test. I just aimed the camera at a printed page under a lamp and shot it through the series of ISO values and found the same behavior: noise peaking at ISO 32000. Herbert Kanner kanner at acm.org 650-326-8204 Question authority and the authorities will question you. On Jan 1, 2014, at 11:34 PM, 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