From FilmmakerIQ.com's Vimeo channel, a nice summation of how we arrived at so many different aspect ratios. It's worth 20 minutes of your day:
John Hess traces the evolution of the screen shape from the silent film days through the widescreen explosion of the 50s, to the aspect ratio of modern digital cameras.
This lesson is part of the FilmmakerIQ course: "Everything You Need To Know about Aspect Ratio"
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