Yoon and I went to the Beethoven Center in the King library to take interesting pictures of pianos, while we were taking the tour and talking to the supervisor, we mentioned that we are taking pictures and then turning them into 3D. to our surprise we found out that there's an invention from the 18th century called the Zograscope, which is made out of a large magnifying lense and a mirror, both are adjustable to the viewer.
the illustration that is viewed, looks like normal perspective when we first look at it, but then when we take a closer look without the Zograscope, it appears that people of different sizes are drawn on the same plane, the person who was explaining this to us, said that it's kinda like the 3d effects of that time
in this image you can notice the guy on the left is really small compared to the other people who are on the same plane to his right
