Les, have you artificially blurred the background using PS in #4 & 5?
I only ask, 'cos I've just changed back to using my desktop with it's bigger/brighter LCD and noticed that the background blur appears to have blotchy pattern, as if it's some form of computer generated pattern.
Still like all the shot, just looking to learn...

No, particularly in 5, it's a bg pattern I've noticed with the 100-400 L lens (other photographers also), it appears to be a quirk of the lens ?


