Wow, sounds interesting. Let me know how it works! Thanks, Rob
> From: "Gordon J. Holtslander" <hol...@duke.usask.ca> > Reply-To: pinhole-discussion@p at ??????? > Date: Mon, 24 Sep 2001 09:15:46 -0600 (CST) > To: pinhole-discussion@p at ??????? > 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 >> >> >> _______________________________________________ >> Pinhole-Discussion mailing list >> Pinhole-Discussion@p at ??????? >> unsubscribe or change your account at >> http://www.???????/discussion/ >> > > --------------------------------------------------------- > Gordon J. Holtslander Dept. of Biology > hol...@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 > --------------------------------------------------------- > > > _______________________________________________ > Pinhole-Discussion mailing list > Pinhole-Discussion@p at ??????? > unsubscribe or change your account at > http://www.???????/discussion/ >
