Archived posting to the Leica Users Group, 2007/01/23
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 5:22 PM -0600 1/23/07, Lottermoser George wrote: >On Jan 23, 2007, at 5:05 PM, Henning Wulff wrote: >>The 20D only has full stop increments, > >oops - obviously been in the bag to long. > >>and the 5D for most of us as well. The intermediate stops on the 5D >>actually produce more noise than the next up full stop, so there is >>rarely any reason to use the intermediate stops. > >I haven't noticed this effect. I also haven't tested extensively in >this regard (I certainly will now). My anecdotal experience has been >rather the other - that when I need high speed but not "full" speed >- that the increments have yielded less noise as I move to lower >ISO's - I'll have to do some hard testing on this. I haven't done the full suite of tests myself either, but I've seen the tests that other people have done, and some have done a very thorough job, including graphing the resulting noise profiles. It seems fairly conclusive. Thereafter I did a quick test, and sure enough, the noise went up from 800 to 1000, but thereafter seemed to stay the same at 1250 and 1600. Since then I haven't used intermediates much. -- * Henning J. Wulff /|\ Wulff Photography & Design /###\ mailto:henningw@archiphoto.com |[ ]| http://www.archiphoto.com