Subject: This Guy Made an 8x10 Large Format Video Camera
The title is a bit misleading. He is using a large format lens to project the
image on a cinema screen-like surface in the back of the camera, and then use
a full format Sony A7S II to film that projection with a wide-angle lens.
I suppose it's the closest thing we can come to a large format video camera
without building a huge 8x10 digital sensor.
The end result is 4k@24fps