Cyanotypes and Gum bichromate

This week we used cyanotypes and gum bichromate, these are uv sensitive processes, and some of the first discovered methods of using light sensitive chemicals to record images.

As I have had experience with the cyanotypes before I decided to try some tri prossesed images. These allow you to layer colours using different digital negatives and create a colour image.

 I used the contact sheet holder and tape to ensure the negative didn't slide. As the Strength of the natural UV light reduced thought the day I resorted to artificial lighting i raised the print closer to the light and used foam board to bounce some of the lost UV light back 

The final images

This was the most successful print I applied a cross process effect to the colours by alternating the filters. I started with a yellow using a cyan filter, then i applied a red filter using cyan Gum and for the yellow filter used red.

This print had 4 process as the first cyan did not take well, I applied with 
Red - Cyan - Yellow -Cyan

 This print was created with Cyan - red and finally yellow