Resources for Double-X 

The following are useful resources with regard to Eastman Double-X (5222). Links will open in a new window.

Kodak – B&W Motion Picture FilmInformation and data on the available B&W motion picture film stock from Kodak.
Kodak – Technical Information BulletinsLots of useful info on short ends, recans, film speed ratings, ISO v EI speed ratings and luminance.
Kodak – FAQAnswers a lot of questions.
Kodak – Film PackagingAll you need to know about the packaging and those numbers.
Chronology of Motion Picture FilmThe history of Kodak motion picture film from 1889 to date.
Rangefinder Forum – Discussion on Double-XThe catalyst for this page. 
Flickr – the Double-X group pool Plenty of examples of Double-X in different developers and various ASA settings. 
Cinematography.ComUseful forum for technical discussions with regard to cinematography