While we are talking about advertising speak, please explain how a scanner can get a density range of 4.2 on a scale of 0 to 4?
Ciao, graywolf [EMAIL PROTECTED] ----- Original Message ----- From: Kent Gittings <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, December 26, 2001 2:13 PM Subject: RE: DPI vs. PPI > True but if raw pixel count is only getting the equivalent of interpolation > between the film grains you may not be getting anything real. If the image > blown up is a little fuzzy around the edges of things then more pixels will > not cure the problem. Only a sharper image with more pixels can help. > Finding that line to crossover from film to digital is the key. If you were > using Kodak Techpan 2415 then more info than 6 MP could be gotten out of the > resulting negative. But maybe with 800ASA Superia X-tra the results would > provide the same information in the shot. Would be interesting if some > magazine was willing to test this out. Say using a Nikon D-1x vs. an F-5 or > a Canon D-1 vs. an EOS-1v. Then try successively faster films scanned on > something like a Minolta Scan Pro (4800 DPI, 48 color, 4.2 dynamic range) to > maximize the film info and find out at what point the film results were hard > to tell from the digicam. Sort of like comparing good lenses. > But then again maybe with their agendas the film/camera makers don't want > that to happen less they have people moving towards one result effectively > harming the other suddenly. > Kent Gittings > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of aimcompute > Sent: Wednesday, December 26, 2001 1:28 PM > To: [EMAIL PROTECTED] > Subject: Re: DPI vs. PPI > > > I agree with your suspicion. > > My Minolta, in raw pixels gets about 8mb from a 35mm frame. With the > 4000dpi scanners, a raw pixel count of about 20mb is realized. > > It does seem there is more than 6 megapixels of information in a 35mm film > frame. > > It's the "standards" issue again... and what size the final output will be. > For most people 6 mega-pixels may be good enough, but "good enough" and "as > good" may be two different things, depending on the user's intentions. > > Tom C. > > > ----- Original Message ----- > From: "Kent Gittings" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Wednesday, December 26, 2001 11:06 AM > Subject: RE: DPI vs. PPI > > > > I don't know either. If I thought that there was really only about 6 MP of > > real info in a 35mm frame I might make the switch to digital sooner than I > > expect to. But I'm not sure they are not fudging their opinions down so as > > to sell large amounts of their higher end digital cameras. > > Kent Gittings > > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED]]On Behalf Of aimcompute > > Sent: Wednesday, December 26, 2001 12:10 PM > > To: [EMAIL PROTECTED] > > Subject: Re: DPI vs. PPI > > > > > > That's interesting, but let me ask this. I'll do it rhethorical fashion. > > > > When I scan a 35mm slide with my 2438ppi scanner, what part of the 20+ > > megabyte file would I choose as being inconsequential to the image? > > > > And now with the 4000ppi scanners it seems there is even more data to be > > found in a 35mm frame. > > > > Tom C. > > > > Kent Kittings wrote: > > > > <snip> > > > > > By the way in the latest > > > product news from Fuji they say that generally (without specifying the > > film) > > > a 35mm snapshot has about 6 MP of info that can be mined out of it with > > even > > > the best scanners. This is when comparing it to their 6900 digicam that > > has > > > a 6 MP interpolation mode. I know at some point a higher and higher dpi > > film > > > scanner will get no more real data out of a negative/slide but just > > > interpolation of the areas between the grain. However I was under the > > > impression the amount of data on a 35mm frame was higher. So either they > > are > > > fudging so as to place themselves correctly in the digicam world or they > > are > > > correct and maybe downplaying the actual data content of their own film > to > > > move towards a digital world. > > > Kent Gittings > > - > > 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 . > > > > > > > > ********************************************************************** > > This email and any files transmitted with it are confidential and > > intended solely for the use of the individual or entity to whom they > > are addressed. 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