Andrew takes us on a tour of his vintage camera collection, explaining the physics and chemistry of photography along the way. The tour is followed by a demonstration of the chemical processes of developing photographic paper by making a simple photogram. This video is the first of two videos exploring the history and chemistry of photography - the second part will be published next week. Chapters: 00:00 - Introduction 03:55 - Pinhole cameras 05:10 - The first photograph 10:09 - The first cameras 19:35 - Henri Cartier Bresson 22:00 - SLR cameras 23:25 - Other interesting cameras 27:55 - Digital cameras 29:37 - Demonstrating the chemistry of photograms Subscribe for regular science videos: http://bit.ly/RiSubscRibe The Ri is on Patreon: https://www.patreon.com/TheRoyalInstitution and Twitter: http://twitter.com/ri_science and Facebook: http://www.facebook.com/royalinstitution and Tumblr: http://ri-science.tumblr.com/ Our editorial policy: http://www.rigb.org/home/editorial-policy Subscribe for the latest science videos: http://bit.ly/RiNewsletter Product links on this page may be affiliate links which means it won't cost you any extra but we may earn a small commission if you decide to purchase through the link.