RolandL
Senior HTF Member
Not to nitpick but, the aspect ratio of 3-strip Cinerama is about 2.6:1. The scenes in How The West Was Won that were filmed in Ultra Panavision, had to be reduced to 2.6:1 for 3-strip Cinerama - see the bottom of the page of the page - http://www.widescreenmuseum.com/widescreen/wingcr3.htm
A 16-perf pull-across camera with a curved gate, and curved real element lens was designed but never used.