There are always two people in every picture: the photographer and the viewer"-
"Ansel adams"
What Ansel, meant was that he wanted the viewer, to be entertained by the photo, they were viewing
and how he takes his, photos in a dazzling way so the views can be, amazed by how good, the quality of the photo is.
Here another photo of what Ansel meant by what he said about his photos.
