Had a long discussion with Adam regarding diffraction and what aperture to use. His point, unless you are enlarging to very large sizes, diffraction is not really an issue, not more than DOF. I went with his advice, since while I will be printing some these, I likely won't be going poster size.
Thank you. I visited the north rim once, very early in the morning and I still remember how quite it was at that moment, because I happened to be all alone for about 20 minutes or so. No birds, no wind. That type of silence is something else.
Again, these are fantastic photos. Thank you for posting.