Tomás Casademunt's long-exposure photographic summaries of Mexico City architectureThrough the process of spectrography, Tomás Casademunt (born 1967) has created a visual chronicle that summarizes in a single image all of the ingenuity and the processes that attend construction. Using multiple exposures on the same large-format plate from the same position, Casademunt's photographs illustrate the creation of various buildings designed by iconic Mexican architects.