[alt-photo] Re: Creating Film Negative by Enlarging a Film/ Slide Positive

[Francesco Fragomeni]

The above Bostick & Sullivan link doesn't give any relevant information to
this specific query. It discusses the use of lith film with an
interpositive process. This is a different process entirely but thank you
for the link.

Kurt, not much is said in the APUG link as of yet. Just confirmation that
people do it and it's fairly straight forward. Here is the
link<http://www.apug.org/forums/forum41/106283-creating-film-negative-enlarging-film-slide-positive.html>in
case you'd like to keep an eye on the thread as it develops.

-Francesco


On Sun, Jun 3, 2012 at 10:56 AM, Kurt Nagy <kakarott76 at hotmail.com> wrote:

> I'm also interested in the specific process for enlarging negatives.  All
> my work is traditional film and want to avoid scanning or printing anything
> digitally.  I do 4x5 Gum at the moment but was thinking of going up to 8x10.
>
> Do you have a link to that APUG discussion?
>
>
>
> On Jun 3, 2012, at 11:18 AM, Francesco Fragomeni <fdfragomeni at gmail.com>
> wrote:
>
> > I got some replies on APUG just after I sent this. Seems that many people
> > are doing this and enlarging slide (positive) film onto regular B&W neg
> > film is fairly straight forward and treated just like making a neg in
> > camera. Some use ortho film while others use regular panchromatic B&W
> film
> > for use with color slide in order to represents tone more accurately.
> > Development is done by inspection (which I already do) in both cases and
> > great enlarged negatives seem to be achievable.
> >
> > If anyone here has experience with this or comments I'd still love to
> hear
> > your experiences!
> >
> > -Francesco
> >
> > On Sun, Jun 3, 2012 at 9:11 AM, Francesco Fragomeni
> > <fdfragomeni at gmail.com>wrote:
> >
> >> I'm interested in enlarging positive film (any slide/ chrome film or B&W
> >> reversal processed film) onto a larger piece of traditional B&W negative
> >> film (not lith) for the purpose of producing enlarged negatives suitable
> >> for alt-process and Azo. I know people do this but I've had a difficult
> >> time finding a solid explanation and instructions for how to go about it
> >> since it is far more common to scan these days which I am very aware of
> but
> >> not interested in with this particular case.
> >>
> >> Basically, can I expose/ enlarge slide (positive) film onto regular B&W
> >> negative film and achieve an enlarged negative? Is the higher contrast
> of
> >> slide film helpful in this situation or a hinderance? Would it be
> better to
> >> contact print B&W negative film (much lower contrast) onto another
> piece of
> >> B&W neg film to produce a positive, develop to the same contrast as the
> >> original, and then enlarge that lower contrast film-interpositive onto a
> >> larger sheet of B&W neg film to achieve the enlarged negative?
> >>
> >> I'm interested in this specific process of enlarging film positives to
> >> larger negatives, not the alternatives so lets please try to stay on
> topic
> >> and not go astray with conversations of digital negatives, duplicating
> >> film, etc., although if reversal processing your original B&W neg to
> >> positive plays a role that might be worth explaining.
> >>
> >> Thank you!!
> >>
> >> -Francesco Fragomeni
> >> www.francescofragomeni.com
> >>
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