The four photos are photograms of objects (ulexite, Iceland spar, prism) that produce optical effects — refracting or polarizing light, either through their crystalline structures or based on their shapes....
The four photos are photograms of objects (ulexite, Iceland spar, prism) that produce optical effects — refracting or polarizing light, either through their crystalline structures or based on their shapes. These bodies of light were originally captured on wet-plate collodion surfaces, which were then transferred to silver gelatin prints.