In the series 'Cocanis' Diego Echevers Torrez pays tribute to the culture and traditions of the Bolivian Cocani (coca traders) by capturing their cultural memory, their voice and their faces projecting the struggle of people anchored in the history of the mines of a city that little by little forgets its origins.
All photos in the series were shot with medium format cameras using a combination of Ilford HP5 and expired Kodak 100 tmax film.
Diego Echevers Torrez uses analogue techniques and processes in all his work. In the 'Cocani' project there is an additional particular thematic connection between the subject of the series and the technique and processes used to produce prints. The silver nitrate used for the development of the negatives is locally sourced and relates to the local history of silver mining. He also uses a unique technique - following the silver nitrate process - of turning the prints in a bath of coca infusion, which has a particular and unique effect on the tonality of the final print.