Audio Control SA-3052 was the analyzer we used to eq our auditoriums at the multiplex i used to manage. The systems had the primary eq done by the acoustic contractors we used when we were building, however, it was company policy to check eq once a year among other things to ensure optimum performance. we used 35mm film at the time and were just beginning the transition to digital. the brightness spec for the film was 16 foot lamberts in the center, dimming to 12 foot lamberts in the corners. With digital the smpte spec was 14 foot lamberts across the screen. we used 3000 to 6000 watt xenon short arc lamps by osram in our projectors depending on the screen and auditorium size. Our screens cost over 14000 dollars a piece back in 2005. our lenses were by schneider optics and were very expensive hand made in germany. if i remember correctly, our scope(2.39:1) lenses cost over $6000 a piece, the flat (1.85:1) lenses were about less than half that. brass apertures had to be hand filed to screen size. It was a lot more work to run film than digital. Our digital houses would have a hard disk shipped to the theatre the week of the release, then for the big budget releases, they would send the encryption info on a thumb drive the night before release to minimize the risk of pirating. the film would come in canisters and way 45-60 pounds. a movie like a harry potter would be 9 reels, a movie like benchwarmers would be 5 reels. each reel was 2000 feet, and we would load them to 6000 foot reels, then load them on to platters that could play through without stopping for reel changes like they had to back in the day.
Last edited by MICROTECH85; 06-27-2017 at 01:43 PM.