I am looking at a used Canon 70-200 F/2.8 IS II and did not see the date code, is this normal? Is there any way to tell if it is a grey market lens over US? I was told it was bought at a US shop in Portland, OR. I don't really need the lens but the price is so tempting that even if I don't like the lens I can resell and make money, what do you think? I have looked at the lens and it is in perfect condition, no scratches anywhere.