Hello guys, I am looking forward to buy a 28-135 mm lens for general photography (beginner). As i read from forums and friends advice, never on lucky plaza. But it so happened i passed by lucky plasa yesterday so i just tried to inquire on their prices. (dont have intention to buy from them). From the 1st store, they said $920, i moved to the 2nd store, they said $750. and to the 3rd store, they said $750. Then i tried to asked their best price they lowered to $650. Since i know im not going to buy from them, i just told him, okay i will come back. immediately, he replied If you come back, i will give you at $550. I was thinking this is quite low compared to the real lens price from canon. Is there posibility that the lens in not genuine?