- These are some of the pictures my group made from using paint and splashing it all over the page and the leaving it exposed to the light. the reason it goes like this is because we use light sensitive paper which reacts when left out in the light for to long and these are the affects of this. The chemigram is a mix between a painting and photography and lies in a general domain of experimentation in the visual art It requires the use of materials from silver halide based photography light-sensitive paper.