Hi everybody, I'm looking for more explanations on shooting open gate. Arri's website says that shooting arri raw open gate gives you a frame size of approximately 3.4 K with a 1: 1.55 aspect ratio. Why is that an important feature? To gain more pixels by recording on a bigegr sensor?Is this mode especially convenient with anamorphic? and is that aspect ratio the "final" aspect ratio of the image?
Also, reading the latest American Cinematographer the DP talking about previously shooting open gate arri raw with anamorphic and then shooting on spherical lenses and not using the open gate mode said" we wanted to get really close to the actor, so we used spherical lenses and only part of the sensor so it was easier to shoot and be more flexible". I do not see the relationship between shooting/not shooting open gate and the possibility to get closer to a subject.