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- Joined: Wed Aug 19, 2020 12:25 pm
- Real Name: Ruben Hahn
There was a 2.20 aspect ratio for 70mm spherical films many years ago, like Lawrence of Arabia, My Fair Lady, and 2001, but not 2.21. I would say it's kind of an archaic format today, but that doesn't mean you couldn't work out the aspect ratio.
Brad Allen's Aspect Ratio Cheat Sheet doesn't indicate what 2.20 would be:
https://www.unravel.com.au/aspect-ratio-cheat-sheet
But based on what's there, we can interpolate that 2.20 would be exactly between 2.00:1 (which is very common these days) and 2.40. That works out to 1920x880. You always have the option to export in the actual aspect ratio and not a letterbox per se. Note that I don't believe DCI DCP's allow 2.20:1 -- you'd have to export in 1.85 and then matte it to 2.20.
2.00:1 was an aspect ratio championed by noted DP Vittorio Storaro for many years as part of his "Univisium" 3-perf film format. It never really went anywhere, but the aspect ratio survived and is now frequently used today by streaming channels like Amazon, Apple, Disney+, Hulu, Netflix, and Paramount+.