Scan — Imax Film

The Ultimate Guide to IMAX Film Scanning: Preserving the Pinnacle of Moving Images

For damaged or warped IMAX film (common with archival prints from the 90s), wet-gate scanners are avoided. Instead, post houses use custom-built units where a high-resolution medium format digital camera (100MP+) photographs the film frame on a light table. This is slow—sometimes 30 minutes per shot—but it preserves the grain structure without mechanical scratching.

If you are sharing someone else's work, it is standard practice in the film community to provide credit, as these scans are often "very physical and tedious processes" that take weeks of hand-assembly.

The active image area is approximately 70.4mm by 52.6mm. imax film scan

IMAX film stocks (typically Kodak Vision3) possess an immense dynamic range, capturing up to 15+ stops of light. The scanner's sensor must use high-quality Photomultiplier Tubes (PMT) or advanced CMOS sensors capable of capturing the deepest shadows and brightest highlights without introducing digital noise. The Leading Tools of the Trade

The light source matters. Modern HDR (High Dynamic Range) scans use LED or Laser phosphors. The scanner shoots light through the negative (for color negatives) or reflects off it (for reversal). For IMAX, a "wet gate" scanning process is often used, where the film is bathed in a fluid that fills scratches, rendering them invisible.

: The process begins with the careful cleaning and preparation of the film reels. Given the large format, even minor imperfections can affect the scanning quality. The Ultimate Guide to IMAX Film Scanning: Preserving

An IMAX 15/70 frame possesses roughly nine times the surface area of a standard 35mm frame. This vast canvas allows for unparalleled detail, deep color graduation, and a distinct lack of visible grain when projected on giant screens. However, it also means that scanning this film requires specialized equipment capable of handling massive physical formats and generating astronomical file sizes. The Technical Mechanics of an IMAX Film Scan

Even if a movie is shot on film, modern movies require digital color grading, CGI integration, and editing.

One second of IMAX film is 24 frames. One minute is 1,440 frames. If you are sharing someone else's work, it

: Prevents damage to delicate or rare film stock by using sensors and motors to move the film rather than physical pins. Infrared Cleaning

A frequent question in film preservation is the digital resolution equivalent of a 15/70mm IMAX frame. While film grain does not map perfectly to pixels, industry experts agree on specific benchmarks: