I have an Epson scanner and never got Newton rings using the scanner film holder, sometimes, only sometimes, I got them scanning film on the glass surface directly (I do it if the film is flat enough), even for these cases I could reduce the number of scannings showing Newton rings cleaning the film surface and the scanner glass surface carefuly despite they look clean, main cause for Newton rings are dust, grease/oil and humidity on both or one of the surfaces, I don't think film emulsion up or down have something to do with the problem, except if one of the sides is cleaner than other; a simple dust speck can cause a Newton ring if both surfaces have contact, however it never happened to me using the film holder. Carlos --- El lun 1-jun-09, Don Williams <dwilli10@xxxxxxx> escribió: > De: Don Williams <dwilli10@xxxxxxx> > Asunto: [rollei_list] Re: OT: Newton rings > Para: rollei_list@xxxxxxxxxxxxx > Fecha: lunes, 1 de junio de 2009, 2:04 pm > > > At 02:08 AM 6/1/2009, Michiel wrote: > > I don't > know the scanner but > I've had this also with my Epson flatbed. > > If the negatives are a bit curled he shiny side might touch > the glass of > the scanner. This can cause the rings. flip the negative > over with the > not shiny side down. Mirror in PS and you're done. > > Or your negative carrier has glass in it which causes the > rings. hen you > need AN glass on the shiny side of the negatives. > > > Cheers, > > > Michiel Fokkema > > Once more, it has to do with the texture of the surface > facing the > glass. Strange to say, I made a list of reminders for > my Epson and > I show the emulsion side to be down. > > > Even more strange, and I can't explain it, there is an > incredible depth > of focus in the scanner. I can scan slides of all > sizes in mounts, > and the adapters for strips of film place the film nearly > 1/16" > above the glass. I've asked the group how this > can be but never got > an answer, even from a couple of folks who were involved in > designing the > scanners. > > > None of my film or transparency adapters have glass in > them. > > > DAW > > > > > Yahoo! Cocina Recetas prácticas y comida saludable http://ar.mujer.yahoo.com/cocina/ --- Rollei List - Post to rollei_list@xxxxxxxxxxxxx - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe' in the subject field OR by logging into www.freelists.org - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with 'unsubscribe' in the subject field OR by logging into www.freelists.org - Online, searchable archives are available at //www.freelists.org/archives/rollei_list