PC Magazine wrote an article about the process 20 years ago: https://www.pcmag.com/archive/online-extra-video-conversion-quality-130973
Today we can scan film in 4K with the Wetgate System.
CinePost Media Transfer Service at (678)238-0800
35mm, 16mm, and 8mm Film Scanning to 4K, 2K, and HD at info@posthouse.com
ScreenshotPC Magazine wrote an article about the process 20 years ago: https://www.pcmag.com/archive/online-extra-video-conversion-quality-130973
Today we can scan film in 4K with the Wetgate System.