Re: Inkjet digital negatives

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From: Judy Seigel (jseigel@panix.com)
Date: 04/24/03-08:35:47 PM Z


On Wed, 23 Apr 2003, Nick Makris wrote:

> Judy, what inks are you using in the 1160?

For negatives, black ink only -- I used both the Epson black cartridge
($24) and the Xtra Cartridges.com black cartridge ($3.95). As I wrote in
P-F #8, page 41 ("Cheap Ink Cartridges"), my tests, both on densitometer
and for fading, showed them identical.

cheers,

Judy

> N
>
>
> ----- Original Message ----- From: "Judy Seigel" <jseigel@panix.com> To:
> <alt-photo-process-l@skyway.usask.ca> Sent: Tuesday, April 22, 2003 8:37
> PM Subject: Re: Inkjet digital negatives
>
>
> >
> > On Mon, 21 Apr 2003, Sandy King wrote:
> > >
> > > Negatives on Pictorico from the pigment inks of the Epson 2000P hold
> > > up very well to the type of abrasion you describe. I just
> > > experimented with a discarded negative and was not able to disturb
> > > the surface of the highlights even with rather heavy finger
> > > abrasion.
> >
> > That's my experience, too. In fact, as I wrote in digital neg article
> > in P-F #8, when I ran my fingernail HARD down the film, it made an
> > abrasion I could see when I looked at an angle but that did NOT show
> > in the print. There may have been some, but I never did see scratches
> > on Pictorico from the 1160. Of course I may lack that sensibility,
> > but... could those scratches be situational ?
> >
> > I've found sleeve arrangements sold for negatives, from the sleeves
> > for 35 mm that you have to slide the strip in & out of to whatever you
> > do for big negatives, unless they're simply interleaved and not put
> > *in* anything you have to slide them out of, cause scratches.
j> >
> > I keep 35 mm film in a single-folded permalife paper slightly longer &
> > higher than the strip, 6 or 7 strips to a glassine envelope, one film
> > strip per paper, so they're lifted out, not slid out. Same for large negs
> > -- I made big "folders" of pH neutral corrugated board, hinged with tape
> > along one long side. The negatives stack in them with clear interleaving
> > between. The negs are "turned", one sheet at a time, so no need to slide
> > them out... On a slide, the tiniest piece of grit, which can just be sky
> > fallout or a loose atom, manages to scratch.
> >
> > Judy
> >
> > >
> > > One thing you need to take care for with pigment inks is that they
> > > require quite a long time to dry, perhaps even up to two hours more.
> > > And this is true whether the pigment is on OHP or paper. Until dry it
> > > is very easy to remove the pigment from paper or OHP with just every
> > > so slight abrasion with your finger.
> > >
> > > Sandy
> > >
> > >
> > >
> > >
> > >
> > > >Lee, We may be dealing in semantics here, since the term "easily" is
> > > >relative. My take on the issue is that you may be able to make a
> negative
> > > >from the setup you are talking about, but that after making one print,
> you
> > > >will probably find that there are imperfections that weren't present
> before.
> > > >In my own case, during test, I checked my resulting neg by simply (read
> that
> > > >very, very lightly) touching the neg with my index finger in a
> highlight
> > > >area of the image. I feel that if you find any abrasion as a result of
> the
> > > >finger touch, the combination of the ink & substrate is not useful. It
> > > >might be good to continue this discussion so that everyone can judge
> for
> > > >themselves and also, I would like to know how your negs hold up under a
> > > >similar test.
> > > >
> > > >Many thanks......
> > > >
> > > >
> > > >n
> > > >
> > > >
> > > >----- Original Message -----
> > > >From: "H. Lee Pratt" <squnch@cox.net>
> > > >To: <alt-photo-process-l@skyway.usask.ca>
> > > >Sent: Monday, April 21, 2003 2:35 PM
> > > >Subject: Re: Inkjet digital negatives
> > > >
> > > >
> > > >> Hello Nick,
> > > >>
> > > >> Just a note to tell you that I'm getting great digital negs on
> > > >> Pictorico OHP using PiezographyBW software along with Cone's quad
> black
> > > >> inks, this on an "ancient" Epson Stylus Color 3000 (four-color)
> printer.
> > > >>
> > > >> As many have pointed out, this OHP does scratch easily; and I think
> > > >> probably Sandy's analysis of why this is so is valid. Handle with
> Care!
> > > >>
> > > >> Lee
> > > >>
> > > >> On Monday, April 21, 2003, at 10:59 AM, Nick Makris wrote:
> > > >>
> > > >> > Sandy,
> > > >> >
> > > >> > You will recall that I'm still looking for the right combination
> of
> > > >> > materials for digital negs - in my case, I am trying to use quad
> black
> > > >> > inks
> > > >> > and not the spectral density approach from 4/6 color inks. So,
> please
> > > >> > don't
> > > >> > misunderstand my question, but, are you now saying that negs
> produced
> > > >> > on
> > > >> > your setup with the 2000 are not as stable as I once inferred from
> a
> > > >> > previous post? It could also be that my mind is going, but that's
> > > >> > another
> > > >> > story.
> > > >> >
> > > >> > Many thanks,
> > > >> >
> > > >> > N
> > > >> >
> > > >> > ----- Original Message -----
> > > >> > From: "Sandy King" <sanking@CLEMSON.EDU>
> > > >> > To: <alt-photo-process-l@skyway.usask.ca>
> > > >> > Sent: Monday, April 21, 2003 9:38 AM
> > > >> > Subject: Inkjet digital negatives
> > > >> >
> > > >> >
> > > >> >> One of the shortcomings of digital negatives from inkjet printers
> > > >> >> appears to be that they are much more subject to scratching than
> > > >> >> negatives on film. I wonder if anyone has found a protective
> surface
> > > >> >> that can be easily applied without damaging the negative? Has
> anyone
> > > >> >> tried a clear coat of satin or semi-gloss polyurethane? And other
> > > >> >> suggestions appreciated.
> > > >> >>
> > > >> >> Sandy King
> > > >> >
> > > >> >
> > > >> >
> > > >> >
> > > >> H. Lee Pratt
> > > >> Santa Barbara, CA 93108
> > > >> squnch@cox.net
> > > >> FAX: 805-565-1670
> > > >> VOICE: 805-565-1240
> > > >>
> > > >>
> > > >>
> > >
> > >
> >
> >
>
>
>


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