Originally Posted by nostatic 
Yes, I just don't agree. Every country manufactures both good and bad products. I've seen excellent workmanship come out of Vietnam and crap come out of Japan. I've seen some especially bad workmanship on US-made products. There is no way I would make a blanket statement about a certain country having poor QC on manufactured goods. It just isn't that cut and dried.
I would agree as well. I don't care as much about it being made in Vietnam as I do that there may be QC issues. It seems to me that for the hefty price of this lens, someone, in some country, could spend a few minutes and put it through its paces before it goes in a box and is sold for around $1,000!