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I really don't follow this logic. Is the IT8 image done with a camera, light, and physical target, i.e. you photograph a standard of some sort? Then it makes sense to me that you could need such a target for each variant of film. If the IT8 by itself represents a standard for the scanner to scan, then the film shouldn't matter, i.e. the manufacturer of the target should compensate for the film. I'll be the first to admit I don't understand film profiling, so don't be afraid to write replies as in "Profiling for Dummies". > -----Original Message----- > From: email@example.com [mailto:firstname.lastname@example.org]On Behalf Of > Bill Fernandez > Sent: Saturday, March 16, 2002 7:53 PM > To: email@example.com > Cc: firstname.lastname@example.org > Subject: RE: Source for IT8 targets? > > > The dyes in different film families have different spectral > characteristics from each other, and the sensors in a scanner have > different spectral sensitivities from these films, and the sensors in > a human eye have spectral sensitivities that are different than a > scanner's. Thus you can create slides from different film families > that all look the same to a human eye, but they will look different > to a scanner. > > --Bill > > > At 11:36 AM -0800 16-3-02, Jim Allen wrote: > >You really need a different IT8 for each type of film????? > >Could someone please expand on this. > > > >Jim > > > >From: "Bill Fernandez" <email@example.com> > > > > >> Bear in mind that you need a different IT8 target for each dye family > >> (Kodachrome, Etkachrome/color, Agfachrome, etc.) you scan, and that > >> profiling to an IT8 target won't necessarily give you better color > >> fidelity when scanning non-photographic materials (which is a common > >> misperception). > >> > >> About the ScanMaker 8700: I've had one for a couple of months and > >> would be interested in comparing notes. You can probably find my > >> reports on my testing of this scanner in the archives, which used to > >> be at http://www.findmail.com/list/scan/. You might also be able to > > > find archives on Yahoo in the Groups area. > > > > > -- > > ====================================================================== > Bill Fernandez * User Interface Architect * Bill Fernandez Design > > (505) 346-3080 * firstname.lastname@example.org * http://billfernandez.com > ====================================================================== > - > Turn off HTML mail features. Keep quoted material short. Use accurate > subject lines. http://www.leben.com/lists for list instructions. > - Turn off HTML mail features. Keep quoted material short. Use accurate subject lines. http://www.leben.com/lists for list instructions.