Re: what do i do with 4x5 film negatives

Wow, sounds interesting. Let me know how it works!

Thanks,
Rob

> From: "Gordon J. Holtslander" <holtsg@duke.usask.ca>
> Reply-To: pinhole-discussion@pinhole.com
> Date: Mon, 24 Sep 2001 09:15:46 -0600 (CST)
> To: pinhole-discussion@pinhole.com
> Subject: Re: [pinhole-discussion] 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 12:52:21 2001