In their bid to simplify loading 35mm film, Kodak, Fuji and other photographic firms squared off the 35mm roll's lead-in tab so a modern SLR's motor-driven loading mechanism could grab the film's sprocket holes and wind it automatically onto the take-up spool.
Led by Kirby Day, Princess' director of shore operations, the industry worked out a plan with Juneau to cut down on noise (prohibiting flightseeing tour departures before 8 a.m. or after 7 p.m.) and pollution (encouraging motor coaches to turn off engines when loading and unloading passengers).