I'm just trying to get my head around this. In the book, he says that he has found that it is very reliable to meter off the sky to get his correct exposure readings. Is he saying that, he meters off the sky, Locks the focus, and then shoots his subject? I tried this today and it kind of worked, but in other instances it didn't.
Can someone please clarify if i am correct in saying, that he meters off the sky (The sky brothers) and then keeps that same exposure and photographs his subject?