This is Melmel. ☺ and that's a great question. Impressed... we're going to talk about the distortion, which is exactly 4-3. As they say, distortion can be divided into 1) perspective distortion and 2) lens distortion. In the case of distortion of perspective, the photographer repositioned or climbed high, and the tilt shift lens were the two solutions. There is a slight difference in the distortion of the lens, but any lens can't be helped because it causes distortion. As distortion increases as you go to the edge of the screen, it is recommended to make a lot of space between the top and bottom of the subject and left and right. If you have a lot of space, you can crop later. Fortunately, distortion of perspective and distortion of lens can be adjusted to some extent as a candidate. I'll talk about it again at 4-3.