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Still needed: a good image of masking, description of light absorption by masking, creating a brighter image -Rlyon (talk) 12:36, 12 May 2020 (PDT)
- Added a reference to Magnascope
- Edited the history section a bit to include more about theaters who have to accommodate all aspect ratios -Rlyon (talk) 13:25, 12 May 2020 (PDT)