by the look of the scenes shot, they are 35mm, not 70mm, 50mm lens would be much wider angle on 70mm.
depth of field can be seen through the view finder, and everything is worked out and rehearsed before hand, they always have a dedicated focus puller and put markings on the lenses, everyone needs to hit their marks at the right time.
depth of field can be seen through the view finder, and everything is worked out and rehearsed before hand, they always have a dedicated focus puller and put markings on the lenses, everyone needs to hit their marks at the right time.