On 5 Dec 2004 at 17:05, Shel Belinkoff wrote: > I don't get it, but I'll accept what you say without reservation since I'm > as ignorant as a carrot about such things.
The key is that the noise remains relatively constant for a given exposure and post process settings. Since image details are difficult to discriminate from noise by the noise profiling software it's best to have minimal image detail but it's good to have a representation of the hues and tones contained in the scene, hence my suggestion to shoot a frame OOF. The noise profiles included with the software are derived using a calibration image which contains gray scale boxes and is defined primarily by ISO and camera type only. http://www.neatimage.com/im/target/NICalibrationTarget1024grayscale.png http://www.neatimage.com/profiling-examples.html Cheers, Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998
