About the light piping phenomenon

Marix Air Color Santa Color uses Kodak's negative film for aerial photography.
A characteristic of this film is that a ``light piping phenomenon'' occurs in which light rays leak in the perforations of the first few frames.
The light piping phenomenon is a phenomenon in which light is transmitted to the emulsion part of the film and becomes exposed to light.
To avoid this phenomenon, please set the film in a dark place as much as possible.