Sandwich Printing

Choose 2 negatives that you feel will work well together and produce an interesting effect

Place these 2 negatives together in the correct position emulsion to emulsion in the negative holder

Fix them in place using clear tape 

Test in the usual way but double normal time strips to 2,2,4,8 seconds to give you 2,4,8,16 seconds to look at

Develop, stop and fix in the usual way.