An uncompressed scan of a single 15-perforation frame at its full potential can result in files as large as 1.5GB per frame . Because of these immense data requirements, scanners like the custom Lunr scanner may digitize at 16K before down-converting to a more "manageable" 8K (roughly 200MB per frame) to allow for over-sampling and superior detail retention.
Scanning this massive format is a technical feat that preserves a level of detail that many experts estimate at . The Technical Marvel of the IMAX Scan imax film scan
Understanding the IMAX Film Scan: Preserving 18K Resolution in a Digital World An uncompressed scan of a single 15-perforation frame
Even directors like Christopher Nolan, who champion 70mm film projection, rely on the IMAX film scan for several key parts of modern filmmaking: How IMAX 70MM Film is Scanned and Printed! The Technical Marvel of the IMAX Scan Understanding
High-end scanners typically use pin-registered gates to lock each frame down for several seconds, ensuring sub-pixel accuracy. This is critical because any tiny movement during the scan would be magnified on a seven-story IMAX screen. It can take up to 14 minutes to scan just one second of screen time at these elite quality levels. Why Scan IMAX Film?