Steve wrote: >Eric ... >>Does a noiseless scanner exist? >> >>Why wouldn't oversampling and averaging help reduce hardware-caused noise? >>Hardware problems can often be somewhat fixed in software, after all. >>Eric > >I'm surprised anyone is even arguing about this.
There's no argument, it's just that scanner mileages vary! My Acer has effectively zero noise in shadows (and its dynamic range is actually pretty good), so multiple passes are effectively worthless to me (for slides). However, if I get the black point just slightly wrong, I can certainly introduce noise. The important thing is to *try* all the possibilities, and not just assume that multi-scanning is getting the best out of your scanner.. I've been caught before thinking that I had got the best out of a problematic slide, only to discover days/weeks/months later that using a slightly different approach (and not necessarily the one suggested by conventional wisdom!) solved the problem. In some cases multi-scanning may well be the solution - in the case of the Acer, and I suspect the Polaroid, I doubt it. But the only way to know is to try.. mark t ---------------------------------------------------------------------------------------- Unsubscribe by mail to [EMAIL PROTECTED], with 'unsubscribe filmscanners' or 'unsubscribe filmscanners_digest' (as appropriate) in the message title or body
