Digital BW, The Print

One thing I'm now doing on my 1680 is to put the neg in-between a black card
mount, place on the platen with AN glass over the top 0 a big improvement
over the carrier and the card cuts down shadow 'noise'.

Julian
----- Original Message -----
From: "Ernst Dinkla" <E.Dinkla@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Wednesday, March 05, 2003 9:55 AM
Subject: Re: [Digital BW] Mounting Oil was Re: Epson3200 - Test results/Kami


>
> ----- Original Message -----
> From: "sceptre12345" <am1000@...>
> To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> Sent: Wednesday, March 05, 2003 2:09 AM
> Subject: [Digital BW] Mounting Oil was Re: Epson3200 - Test
> results/Kami
>
>
> > > For large negs consider using a cover sheet so that you have
> a
> > sandwich of
> > > glass/oil/neg/oil/cover film. The cover film is taped to the
> glass
> > and you
> > > can then use film wipes on the cover film to work air bubbles
> out
> > to the
> > > edge of the negative.
> > >
> > > Martin Wesley
> >
> > Would some cover material like a clear acetate be sufficent as
> a
> > cover film ? How is the negative cleaned after scanning ? Any
> danger
> > to the emulsion of the negative ?
> > TIA
> > Andre
>
> Use transparant polyester for that. That is the same plastic the
> film is made of. The prepress supply dealers have that too in
> sheets or on rolls.
>
> One warning if you use fluids on a flatbed: the surrounding
> plastic housing is often made of ABS, it will degrade when it
> gets in contact with the fluid. Few plastics withstand the
> agression of aromatic fluids: polyester, polypropylene,
> polyethylene, nylon, polyurethane, silicone and several more
> exotic grades will not be affected or less affected. You have to
> work very careful and not spill any fluid on the housing or put a
> polyurethane (or silicone that can be removed ?) varnish on the
> plastic directly surrounding the glassplate. Maybe a piece of
> cling foil with a window cut out will protect it as well (if it
> isn't a PVC product).
>
> Professional wetmounting is a process. Antistatic air, adhesive
> rolls to take dirt of film and glass, extra cover sheet, mounting
> fluid, pressure roll.
> There are ways to simplify that.
>
> The housing of most flatbeds isn't strong enough to squeeze the
> fluid from the sandwich with a roll, better use a polyethylene
> squeegee and another sheet of polyester on top to avoid
> scratching of the first polyester sheet. A tod at the end to
> absorb excessive fluid. Find a good methode that doesn't need
> tape to keep the polyester sheet in position. Tape always gives a
> mess in the long run. For that reason I've made some small clamps
> on my special Nikon 8000 wetmounting carrier.
>
> If you have a register punch and a register strip you can put the
> strip with two sided tape on the housing outside the glass or on
> a non scanning part of the glass. For the 3200: there is a small
> strip along the left side that isn't scanned. Punch the foil and
> put it on the scanner. If you use the same spots the glassless
> carrier uses then it is easy, put the carrier on top of that and
> mark the window on the polyester foil. Take it off and you know
> where the film has to be placed between polyester and glass.
> After mounting you can put the carrier on top for scanning. If
> you need other film windows then the punch and black paper masks
> will make the process as easy. That is how I used to wet mount
> film on the Agfa Horizon Plus. If you are handy enough then a
> good! adjustable! office punch and a selfmade strip will do.
> Don't use more than two holes on sheet sizes like this.
>
> Ernst
>
>
>
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