re:help with pinhole cameras and bleprint paper in camera

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From: stephen (birdee@cobweb.net.au)
Date: 03/20/02-09:52:35 PM Z


Mark, perhaps you are confusing diazo with cyanotype. Manufacturers sometimes refer to blue diazo paper as blue print, while in alt. circles blue print is taken to mean cyanotype. Diazo can be developed in windex, cyanotype is devleoped in water. Diazo can be used to take in camera images. Exposures of four hours or more are required. A pinhole image would take several days.
the following website has an image taken in camera using diazo. http://www.sentex.net/~mwandel/blueprint/blueprint.html?uniq:3625


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