You know- a REALLY GOOD optical engineer designing a lens for a film camera would have some distortion in it to account for curvature of the film in the chamber...
In all seriousness- lens manufacturers had to account for film curvature for shimming the lens. I wonder if any lenses also accounted for the non-flat surface distorting the image, and applying an optical correction into the design.
In all seriousness- lens manufacturers had to account for film curvature for shimming the lens. I wonder if any lenses also accounted for the non-flat surface distorting the image, and applying an optical correction into the design.