Royan jon

thx Mr. smith. but how to apply the 5D II aspect ratio (1.78:1 to 1.66:1) I still do not understand about this?

I am a student will do a task, shoting using fuji s16 mm (1.66:1) EI Eterna 500T with 1 push processing (big grains) and 5D Mark II (1920x1080p) with a clean image.S16mm will be used in setting the slum area, while the 5D Mark II will be used in urban areas and rich people's homes. telecine with 2k resolution, aspectratio of 166:1 .. What things to be aware of this? if any mistakes please in correct me.thanks. -Roy.