If you're interested in more info, go to www.blueprintphotography.com.
This was a contact print made from a color transparency print of a digicam image. I tend to do large format images with blueprint paper using the paper instead of film, as the paper is a positive medium. Contact prints are easily done but you'd want a large slide to work with.
Enlarging is easy using a variety of devices, including overhead projectors and slide projectors.
I saw your comment in the forums about blueprints and had to take a look, what a great idea! I'm going to have to do some research on this. I imagine you need a neg the same size as the blueprint, so large format here? I used to run hand-drawn pencil ad layouts through a blueprint processing machine (I can still smell the ammonia) in the 70's - whoa! am I that old?! I worked as a layout artist for a retail chain and everything was done with a pencil, no computers. We made blueprints, or ozalids of the layouts as a quick method of duplication, the layouts were very large and this was the cheapest way to get large copies. Now that I think about it, why not negs? You should write an article for this site, I'd love to read it and I imagine many others would, too. Thanks so much for the new idea. Oh, and this image is great, very cyanotypish. I like the way your eye is drawn through the bridge and off into the far horizon. You got a great range of blue tones through this so I imagine it was a sharp neg.
Hello. My name is Diana Clark and i just added you to my friends list because I #1 Love your photo of the bridge , #2 I took a photo almost like this one and it was in the art gallery through the Mo. of August, now it is going on an exhibit tour , Was also printed in the Kentucky Monthly magazine for the Mo. of August