50 points! ! Draw and explain the off-axis of the intermediate lens.

How did this country become so complicated? I don't know if the map I made is correct, but the last one should be inaccurate. I can make do while watching.

The blue-green light-green square is a person, the red arrow 12 is a lens, black is an axis, and gray is a reference. The two pictures on the far right can be omitted, assuming that the first four pictures are two people going to the store to buy things.

1 The first shot was taken from the left side of the shaft, and the second shot was taken from the right side, passing through the shaft in the middle.

2 Two lenses are cut diagonally at 180 degrees on the axis and straddle the axis.

3 The lens moves from 1 to 2, starting with the blue man, and then replacing the blue man with the green man, and the lens moves across the axis.

4 Use the reference object to cross the axis

Anyway, to put it simply, the green man was on the right side of the camera at first, but because of the personnel transfer, the next green man ran to the left side of the camera. It should be that the actor had booked the axis.

What I said may not be the same as the domestic textbooks, but the way to avoid off-axis should be the same, that is, if a character rushes in one direction in a shot, the camera on the left or right will keep the character moving in this direction unless the character turns his head!