During a residency at The Sustainable Darkroom, Pedro Mendes Leal learned Vertotype – a technique discovered by Jonathan Bradley,  similar to cyanotype, but developed with greater environmental awareness. Since then, he has been experimenting with and refining the process and shares what he has learned. Writer and photography / Pedro Mendes Leal Read the MSDS (Material Safety Data Sheet) before attempting to use chemicals and use the correct safety equipment. … Continue reading Vertotypes – Eco-printing, based on cyanotypes