Hey everyone. So I am getting a bit confused about certain terminology when it comes to film size and sensor sizes, so I was hoping for some clarification. After looking online through other forums people seem to use terms interchangeably so it can be a bit confusing, so I will lay out what I know so far ( hopefully) and questions that arrive from that.
So when it comes to film, cinema film, not still photography, the standard is 35mm film.
For Super35 film it uses the same film stock as standard 35mm film except it uses more negative area than the 35mm film because it uses the area that would be used for optical sound on standard 35mm film.
Now when it comes to digital sensors, I've seen the terms full frame and Super35 being used in a different way. When it comes to sensors , for instance comparing the RED Monstro which is advertised as a full frame sensor, to the RED Helium, advertised as a Super35 sensor, there is a difference in sensor size, with the full frame being bigger.
So my question is why are these terms used differently when talking about sensors. Because if Super35 film is the same size as standard 35mm film , why is Super35 considerably smaller than full frame in digital sensors? Unless I am wrong in assuming that Full Frame = Standard 35mm film.