Originally Posted by weekly

Sorry to say....you don't quite get it. Your brain corrects for a lot of things. Depth of field, white balance, focus. None of this is a problem for your eye because it has the fastest most sophisticated processor on the planet...your brain. All we can do is play with it in two dimensions. Your brain will make blue light or yellow light look white. Your brain never sees depth of field. Your brain doesn't care. We have a limited tool called a camera and we try and trick the brain. When you get this concept, it will make much more sense.