Okay, I've placed this in it's own thread so everyone who's interested in the lens would see it. If the moderator thinks I'm crazy, you can move it.
First, please excuse that these are very quick down-&-dirty portrait shots, so please don't be too hard on them. I was looking to see what the lens can do.
You'll see several shots showing the it is possible to get intimate head shops (12 inches frame area). But what's truly amazing is the detail at 2.8. Watch the progression of shots. The two 100% crops of the wood carving are at F2.8 and F8. Outside of a tiny bump in contrast detail is identical for all practical purposes. I've never seen a zoom lens retain so much sharpness wide open. It's truly entering prime territory.
Most of the shots are wide open at 200mm or close to it. I backed off to 195 and 185 at times.
Thus far this appears to be the best zoom on the planet. I don't know if it's a 70-200 or 68-167.5, but wherever it falls, it beats any other zoom going. Again, forgive me for not staging better portraits.