Re: what do i do with 4x5 film negatives

Hi:

Yes you can contact print them. But you don't _have_ to limit yourself to
printing on b&w paper. You could delve into one of the may alternative
processes cyanotype, gum bichromate etc ...

I have been doing a lot of cyanotypes from 8x10 negatives.

see http://duke.usask.ca/holtsg/photo/faq.html

There are lots of different processes one can use once you are working
with a large negative.

Another really interesting technique: ...

A friend of mine read about etching linoleum blocks with oven cleaner with
a photo sensetive resist.

Lino blocks are often used to teach children basic printmaking. The lino
block is carved with a variety of tools. The block is inked and printed
by placing a piece of paper over the inked block and pressed down.

Where the block was cut away no ink is deposited on the paper

Apparently you can coat a lino block with a mixture of gum arabic and a
dichromate. (Common alt photo stuff). This makes a photo sensetive
resist. This is developed in water. Where the gum bichromate was exposed
to light hardens and forms a resist. Where the light did not expose the
gum washes away in the water.

The lino plate is then sprayed with oven cleaner. The hardened gum forms
a resist and prevents the oven cleaner from etching the lino. Where the
negative was "unexposed" becomes etched out on the plate.

If one worked from a postive image ( a contact print of the neg) you could
make a lino block that prints an image of some sort of your pinhole shot.

I have absolutely no idea of how well this works. I hope to try it out in
the next few weeks.

Gord

On Sun, 23 Sep 2001, R Duarte wrote:

> Hi,
>
> I am building a wooden camera that will take 4x5 film backs. I was planning
> on just loading the film backs with 4x5 pieces of RC paper. If I were to
> load it with 4x5 sheets of FILM instead, what can I do with the film
> negative once I've exposed and developed it? Can I still only contact print
> it? It's obviously too big for the enlarger unless I wanted to "crop" it
> right? Sorry if this is a silly question.
>
> Thanks,
> Rob
>
>
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---------------------------------------------------------
Gordon J. Holtslander Dept. of Biology
holtsg@duke.usask.ca 112 Science Place
http://duke.usask.ca/~holtsg University of Saskatchewan
Tel (306) 966-4433 Saskatoon, Saskatchewan
Fax (306) 966-4461 Canada S7N 5E2
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Received on Mon Sep 24 11:17:42 2001