Copying 35mm B/W Negatives?

I have a slide copier coupled to my 35mm camera.
I want to copy negatives to make negatives.
Which b/w film & developer should i use?
Alternatively could i use color slide film to
copy b/w negatives? Which slide film?




Marvin Rosen

I used to get satisfactory results using Plus-X exposed at EI 50 and
developed for 7 minutes in HC110 diluted 1:15 from stock (not concentrate).
The transparencies had high contrast and that had to be tamed somewhat
through generous exposure and gentle developing.

I used this to copy 4x5 transparencies and some slides for newspaper ads
about 10 years ago - before digital hit and wiped out that side-line
business for me.

You could try agfa scala or using a reversal process on something like t-max
although the contrast might be a problem.

-Lyle

"William Schneider" <(E-Mail Removed)> wrote in message
news:TYWQa.16683$(E-Mail Removed)...
> Oops.
>
> I just reread your question, and now see that you want to make copy
> negatives from negatives.
>
> Please disregard my first reply.
>
>

"Marvin Rosen" <(E-Mail Removed)> wrote in message news:<zuTQa.55504$(E-Mail Removed)>...
> I have a slide copier coupled to my 35mm camera.
> I want to copy negatives to make negatives.
> Which b/w film & developer should i use?
> Alternatively could i use color slide film to
> copy b/w negatives? Which slide film?

You might want to try Eastman 5360 Direct MP film. It is a very slow
(around EI 0.3) copy film which forms direct positives (or in your
case direct negative copies) with normal black and white developer.

I've been using it at higher contrasts in Dektol, but I believe that
if you want the contrast to be around the same as the original, something
like D-76 1:3 for 5 minutes at 68F ought to be about right.

You can get 100 feet of the stuff from Ted Pella for $23.

Peter.
---
(E-Mail Removed)

"Marvin Rosen" <(E-Mail Removed)> wrote in message
news:zuTQa.55504$(E-Mail Removed)...
> I have a slide copier coupled to my 35mm camera.
> I want to copy negatives to make negatives.
> Which b/w film & developer should i use?
> Alternatively could i use color slide film to
> copy b/w negatives? Which slide film?

This is going to be tricky. Slide duplicating film, such as Kodak EDUPE,
should work. Most other slide films will raise the contrast.

A black-and-white slide film (they exist, but they're rare) might work.

I think Kodak has recently discontinued Rapid Process Copy Film, which
yields a positive image when developed in standard (negative) chemistry.
(As best I understand it, it uses the Herschel Effect, a reversal that
occurs with strong overexposure.) I saw bulk rolls of this film in the
out-of-date discount bin at Showcase Photo in Atlanta
(www.showcasephoto.com).

"John Walton" <(E-Mail Removed)> wrote

> Kodak SO-366 will work

Obsoleted, it seems, and replaced by Edupe.

> Slide dupers which mount on your SLR are marginally OK
> for transparencies which are going to be projected, but for making negative
> dupes which are going to be printed they don't have the resolution.

Oh yes, those $39.95 wonders from Cambridge Camera. Forgot about those.
Forget about those.

I use a Nikon PB5 bellows, slide attachment and Micro-Nikkor and don't
have any problems. The Beseler unit is nice though: you don't have to tape
CC filters to the slide holder, the light source is always the same....

--
Nicholas O. Lindan, Cleveland, Ohio (E-Mail Removed)
Consulting Engineer: Electronics; Informatics; Photonics.

"Nicholas O. Lindan" <(E-Mail Removed)> wrote in message
news:bf3jau$7lo$(E-Mail Removed)...
> "John Walton" <(E-Mail Removed)> wrote
>
> > Kodak SO-366 will work
>
> Obsoleted, it seems, and replaced by Edupe.
>
> > Slide dupers which mount on your SLR are marginally OK
> > for transparencies which are going to be projected, but for making
negative
> > dupes which are going to be printed they don't have the resolution.
>
> Oh yes, those $39.95 wonders from Cambridge Camera. Forgot about
those.
> Forget about those.
>
> I use a Nikon PB5 bellows, slide attachment and Micro-Nikkor and don't
> have any problems. The Beseler unit is nice though: you don't have to
tape
> CC filters to the slide holder, the light source is always the
same....
>
> --
> Nicholas O. Lindan, Cleveland, Ohio (E-Mail Removed)
> Consulting Engineer: Electronics; Informatics; Photonics.

I have the Beseler slide duplicator. But, I no longer use it. I find
that it is much more convenient to use my enlarger. What I did is make
a jig that holds the camera without any lens.


--
Manny Bhuta
Randolph, NJ USA

"Marvin Rosen" <(E-Mail Removed)> wrote in message news:<zuTQa.55504$(E-Mail Removed)>...
> I have a slide copier coupled to my 35mm camera.
> I want to copy negatives to make negatives.
> Which b/w film & developer should i use?
> Alternatively could i use color slide film to
> copy b/w negatives? Which slide film?

You still haven't adressed the issue of why you'd want to do this. The
results are going to horrible.