their use by holding concerts and demonstrations by guest musicians. Photographs The Met's collection of photographs, numbering more than 25,000 in total, is centered on five major collections plus additional acquisitions by the museum. Alfred Stieglitz, a photographer himself, donated the first major collection of photographs to the museum, which included a comprehensive survey of Photo-Secessionist works, a rich set of master prints by Edward Steichen, and an outstanding collection of Stieglitz's photographs from his own studio. The Met supplemented Stieglitz's gift with the 8,500-piece Gilman Paper Company Collection, the Rubel Collection, and the Ford Motor Company Collection, which respectively provided the collection with early French and American photography, early British photography, and post-WWI American and European photography. The museum also acquired Walker Evans's personal collection of photographs, a particular coup considering the high demand for his works. The department of photography was founded in 1992. Though the department gained a permanent gallery in 1997, not all of the department's holdings are on display at any given time, due to the sensitive materials represented in the photography collection. However, the Photographs department has produced some of the best-received temporary exhibits in the Met's recent past, including a Diane Arbus retrospective and an extensive show devoted to spirit photography. In 2007, the museum designated a gallery exclusively for the exhibition of photographs made after 1960. Film The Met has an extensive archive consisting of 1,500 films made and collected by the museum since the 1920s. As part of the museum's 150 anniversary commemoration, since January 2020, the museum uploads a film from its archive weekly onto YouTube. Digital representation of collections Beginning in 2013, the Met organized the Digital Media Department for the purpose of increasing access of the museum's collections and resources using digital media and expanded website services. The first Chief Digital Officer Sree Sreenivasan from 2013 departed in 2016 and was replaced by Loic Tallon at the time that the department became known by its simplified designation as the Digital Department. At the start of 2017, the department began its Open Access initiative summarized on the Met's website titled "Digital Underground" stating: "It's been six months since The Met launched its Open Access initiative, which made available all 375,000+ images of public-domain works in The Met collection under Creative Commons Zero (CC0). During what is just the dawn of this new initiative, the responses so far have been