ff1d1l
pfm Member
From Wikipedia:Stanley Kubrik had special camera lenses made, so that he could film by actual candlelight - this gives these scenes a wonderful visual quality. Ryan O'Neal said that Kubrik forced him into places he never thought he could go.
Interestingly, and ironically, given the recent cinema release, Kubrik's original project was a life of Napoleon. However, another Napoleon-based film failed at the box office, hence the deviation into Thackeray.
Kubrick was "determined not to reproduce the set-bound, artificially lit look of other costume dramas from that time."[6] After "tinker[ing] with different combinations of lenses and film stock," the production obtained three super-fast 50mm lenses (Carl Zeiss Planar 50mm f/0.7) developed by Zeiss for use by NASA in the Apollo Moon landings, which Kubrick had discovered.[6][15] These super-fast lenses "with their huge aperture (the film actually features the lowest f-stop in film history) and fixed focal length" were problematic to mount, and were extensively modified into three versions by Cinema Products Corp. for Kubrick to gain a wider angle of view, with input from optics expert Richard Vetter of Todd-AO.[6][15] The rear element of the lens had to be 2.5 mm away from the film plane, requiring special modification to the rotating camera shutter.[16] This allowed Kubrick and Alcott to shoot scenes lit in candlelight to an average lighting volume of only three candela, "recreating the huddle and glow of a pre-electrical age."[6] In addition, Kubrick had the entire film push-developed by one stop
The entire Wikipedia article is an extremely interesting read, recommend if you are an admirer of the film.