I don't know if I can properly explain my question, but I'll try: I'll be shooting something in Super 8 film, but I want to blow it up to a 16:9 aspect ratio after it is scanned. Let's say I want a particular shot to be a close-up in that 16:9 aspect ratio: how do I set it up in my Super 8 camera? In other words, let's say I set up a close-up with a 40mm focal length (in that Super 8 camera)? How much should I then "shorten" that focal length, so that whatever framing comes from that ends up being the close-up that I intend it to be in 16:9? In yet other words: is there a focal lenght ratio between shooting in the Super 8 aspect ratio (or for simplicity sake, let's say 4:3) and blowing it up to 16:9, so that I can know how much shorter should I choose my focal lenght to be when I shoot in Super 8?
Thanks for the help