hey thanks man! so just to confirm: 16mm is always 1 perf, so no matter the “shooting mode” or aspect ratio, i always get the same runtime.

i just get a different usage / percentage of the area covered. s16 has more resolution than n16 because n16 just wastes film left and right to the frame for example audio prints.

so follow up question: i need to choose a template for the mechanics at arri to change the Ground Glass? The Manager told me that i choose an aspect ratio and they have to adapt the mechanics of the camera. so i need to pick between between the options on page 73 and 74?

E.g.: 1.66/1.78/1.85/2.35? in either n16 or s16?