Today was our first session in the dark room and I learnt about rayograms. They are black and white images which sort of look like scans created by placing an object over photosensitive paper and being exposed to light for a period of time. I was hesitant at start because of all the different numbers for the different things - exposure time, iso rating, aperture setting, all these numbers baffled me.
I found that working by trial and error is the easiest way to get around these numerical problems. After placing a cut section of paper(less waste), I exposed the paper to 5second blasts of light, using a book to cover sections for progression of exposure increasing 5, 10, 15, 20 , 25. Once exposed, the paper went through a processing machine which reveals the photograph and protects the surface from further light absorption.
Taking the image out of the darkroom to review the best setting is vital but also is startling as of the epic light change to your eyes. Choosing the best section is personal preference but sometimes I was not happy with any outcome so would go back and use shorter/longer time intervals than the previous test based on the first lot.
I will add some of the pieces I have created in a new post :)
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