4 NTFs printables positive photo from analog negative on paper. Made with a pinhole camera DIY in alluminium box (Illy). Original in Multigrade IV DE LUXE Satin - Ilford. Shot in Parco Fluviale Gesso e Stura . Italy. 2015. Ref. (In Italian) https://www.comune.alba.cn.it/en/sma-all-2/152-sma-notizie/3155-alba-in-una-scatola-laboratorio-di-fotografia-stenopeica-sab-27-maggio About Pinhole Photography: http://www.paologioli.it/download/Gilardi-ENG.pdf