murray_kelly

<p>Will, you don't say what camera you were using. I wonder, because Kodak Rapid Process Copy Film will give you a positive image de novo. Ron Mowbrey says it is actually a normal film, pre-flashed. I was given a couple of rolls from the photo unit at work and was startled to see the edges of the film were black and the images positive. I thought I was getting microfilm. This kind of film used to be used to copy X-ray images but to keep the negative as a negative, which is what radiologists are used to.<br> Now, could you have pre-exposed the frame accidentally? One always assumes there is an interlock frame winder and counter but some cameras can easily be over ridden and a pre-flashed positive result.<br> Just a thought.</p>

<p>I wonder if it could be made to work as an enlarger? By someone closer to you than I am! :-)</p>