Just saw this on ebay, I've been wanting to buy this lens for a while but its been out of stock. Just called a local camera store and they finally had on in stock for $730, a little more expensive then I was hoping. I checked B&H again $699 but out of stock, then I checked ebay and saw this http://cgi.ebay.com/Tokina-AT-X-116-Pro-DX-11-16mm-F2-8-Canon-New-/370397194575?cmd=ViewItem&pt=Camera_Lenses&hash=item563d64a94f. Is to good to be true? The seller has great feedback so it seems good but I really don't want to risk it.