On Sun, 11 Nov 2001 20:21:09 -0500, Tom Rittenhouse wrote: > Very interesting. Let's see a 2400 bpi can give a 22-23 mb file size. A 6 mp > image is about 18 mb. Now I never found my 2400 bpi scans to match a > properly done photographic print of the same size. Yes digital prints can > match photographic prints look at a Fuji Frontia print but they are made > from a heck of a lot bigger file than we are talking about from any > affordable digital camera.
And, to top it all off, you've just (apparently) fallen victim to exactly the sort of flim-flammery the camera manufacturers want you to fall victim to. An xMP image from a digital camera is (generally) _not_ equal to an xMP image from a scanner. The scanner actually captures 24 or more bits of color data for each of those individual pixels. A digital camera usually only captures one "color's worth" of data for each pixel and interpolates the rest from its surroundings. So, the end result is not even as good as comparing an xMP full color digital camera image to an xMP scanned image. The flip side of the coin is that a digital image is first generation, where a scanned film image is second generation. Like you, Tom, I'm not a Luddite. For heaven's sake, I make my living on computer technology. But I'm also not going to buy into their marketing cloud of smoke. Digital cameras have a _long_ way to go to equal the information capture capabilities of film. They're fine right now for P&S applications, but a 6MP camera is only one third of a 6MP scanner, as things stand right now. And neither one approaches the capture capabilities of film, according to the research I've seen. And, to top it all off, to really capture everything film has to offer, digital has to go at least slightly more than twice the theoretical capture resolution of the film (Nyquist sampling theorem, or was it Shannon ?). TTYL, DougF - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
