On 29 Aug 2002 at 21:27, Herb Chong wrote: > simple. clear film to black has a larger dynamic range than orange base to > black. don't mistake range for contrast itself. the scanner relies on and > captures dynamic range, and stretching a negative's range after subtracting the > orange mask and inverting in Photoshop starts to introduce color aliasing.
Hi Herb, Not so if the dynamic pre-amplification is tailored to optimise the media being scanned or if you have a low noise image capture device followed by a precision low noise image sensor that can deliver 14bits per pixel? The reality is that no system can never get back the information lost in the black of a shadow or in the blown out highlight in a slide. There are obviously certain lighting conditions natural or artificial that do suite slide films but where and what I shoot it's rarely the case hence my predilection for negative films. I'd rather a little noise than lack of detail. BTW I have read your article "The Art of Scanning" and many more of a similar vein, I did appreciate your article but don't agree entirely :-) Cheers, Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications.html
