Father Pitt has decided to release all his pictures into the public domain with a CC0 public-domain dedication. That means you can use them for any purpose without asking permission, but you can’t hold poor old Pa Pitt responsible for the results. It’s nice to credit “Father Pitt,” but it’s not required.
If you click or tap on any of the pictures, you will get the picture at its highest possible resolution. Old Pa Pitt uses some older cameras, but most of the pictures have a resolution big enough to print as a full page in a magazine. The four cameras Father Pitt took with him to Winston-Salem had resolutions of 10, 14, 20, and 50 megapixels—the last being a cell-phone camera that doesn’t have 50 good megapixels, but does produce large pictures.