Most of the photographs are taken with the latest cameras. However, there are also some older ones where the subject matter takes priority over technical quality. This may result in slightly lower quality when viewed up close. These photos were taken with older cameras that did not have the latest resolution. Ultimately, this is art and also a part of history where a moment was captured. And after all, you don't look at photos with your nose touching the wall. I guarantee that the photograph will still look beautiful in the room.