Every once in a while Ken gets a friend (or one of his aliases) to post on POTN and other photo-based websites in order to generate some traffic to his web site by people who didn't bother to do a search in POTN before replying to a "Who is this Ken Rockwell and what does he know about photography" threads.
Funny it is, that every 6 months or so (just like the full frame vs crop threads) this one shows up.
Way to go Ken.
damn, Ken punks us again
that dastardly know-nothing
(or maybe he's a sharp cookie)