Please do yourself a favor. Never, ever, buy a grey market Tamron lens. The company will not support it in any way. Tamron is a wonderful company and has some of the best lens offerings. They are much cheaper and often better than those offered by Nikon or Canon. A grey market lens will void any attempt on your part to avail yourself with their 6-year guarantee. It's not worth it to take the chance!
What is your usual metering choice in photography? Do you prefer matrix in most of your choices, or is your choice based primarily on the situation?
Best lens is my Tamron 16-300 mm. 3.5-6.3 Di ii Macro. I keep it at the ready on my camera and take it off only during special situations that might demand a change. I have found it to be my most valuable everyday lens.
Several years ago, I purchased a Nikon point and shoot digital camera, along with an accompanying lens for a dear friend of mine. He knew that I had been an avid amateur photographer and asked for some advise, primarily because the digital scene had become a recent phenomenon. I was embarrassed with the outcome. First, the delivery was delayed for more than a month. Upon its arrival, I discovered that the camera and the lens were both grey market items. While discussing the original purchase on the phone with an employee, he indicated that the camera and lens were both fully warranted by the manufacturer and that Abe's did not sell any grey market items. When the package arrived, I did find that the lens was defective, so I then called Abe's, only to discover the many lies that had lain beneath the entire purchase. Since there existed many fabrications about the entire episode, I was totally embarrassed by my need to relay the information to my friend. Never again for me! Stay away from this fraudulent so-called photo business, as you will sorely be disappointed with the outcome. Buy from a reputable dealer and be comforted by the fact that your purchase and guarantee will be honored fully. Lesson learned for me and anyone who is looking for a good deal.