At 00:15 31.08.02 +1000, you wrote: >On 29 Aug 2002 at 15:05, Herb Chong wrote: > > > negatives have less brightness range than slides. you will still get best > > results from scanning slides if you have a good enough scanner. > >Why do you believe this? Scanning negs gives a far superior contrast >range, you >can never get beyond a little over 4 stops from a slide. [Rob]
Rob, I think Herb is right: It relates to the Dmax a scanner can resolve. A neg only has a Dmax of 2-3; thus a scanner with a similar Dmax may be better served with neg film as the contrast range of what is on the negative film can be fully captured. Picture libraries are picky -in contrast to what you mused- they also serve customers that require stunning images for calenders etc, they do go for max quality! The latitude problem of slides (higher range between 0 and Dmax on slides) was never a problem on high end scanners in use in the picture libraries. Of the pro's I know in the scene, none have switched to negatives, but I agree that such information is just anecdotal evidence. It really depends on which scanner you buy: It is important to check the Dmax and if it is below 4, you might be better off with negs. Knut
