Originally posted by ChopperCharles But, scanned negatives are only about 6 megapixel. You can scan them higher, but you won't get any more detail out of them.
Buy a better scanner...
Truly, though, much depends on the film and the skill of the operator. My experience with a fine-grain negative and good technique is that detail is still there at 4000 dpi which calculates to about 21 megapixels with a 35mm negative.
Steve
FWIW, the calculated 21 megapixel value that is often quoted for a 4000 dpi scan is a little misleading. There is more to an image than the digital resolution. Even RAW camera output from a digital sensor has gone through an image processor that adjusts color and boundary contrast and corrects for artifact. Scanned images (even TIFF), unfortunately, are not quite so robust and often "fall apart" with even gentle post-processing. For that reason, I pretty much avoid commenting on digital vs. film threads. To me, the two media are simply different. Both are good.