Archived posting to the Leica Users Group, 2006/09/20
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Hoppy, I posted this link yesterday, but it bears repeating: http://www.luminous-landscape.com/tutorials/expose-right.shtml This piece was written in 2003, but again, I don't believe the laws of physics have changed in last three years. Quote from the article: Digital guru Ian Lyons has some comments on this technique with some insights as to how digital compares to what we've been used to with film... Basically the ideal exposure is as Michael describes: get your histogram as close to the right side as possible but not so close as to cause the over exposure indicator to flash. The ideal exposure ensures that you have maximum number of levels describing your image without loosing important detail in the highlights. The closer you get to this ideal then the more of those levels are being used to describe your shadows. If you underexpose an image to the extent that the shadows block, which is often what folk do to protect their highlights; then you will need to open them again to ensure the final image is as you require. The problem with this approach is that we only have 128 levels available to the shadows. You start pulling curves, etc to open the shadows and you'll get posterisation, etc. Again, HTH, Rob