Summary: I wanted a walk-around lens that gave me a lot of capability and was compatible with my Nikon digital cameras. I have always had good luck with Tamron lenses and purchased this lens (the 18-250mm F/3.5-6.3) to fill the bill. The lens works great, gives sharp photo's and covers a wide zoom range. The lens is a little heavy and big but comparable to the Nikon lenses of the same type. The price was also great and was within my budget.
You really don't need another lens! Just this one.
6 November 2012
Summary: The range is fantastic on his lens, the macro ability is fabulous too. I recently bought the lens AGAIN after running into a door jamb with the first one and basically destroying it. If I break this one, I'll buy another. Great lens! The ony disadvantage is that it isn't a great low light lens. But, if you want a 2.8 aperture, you'll have to pay more than double the price. I'm good with using a heavy tripod and this lens.
Summary: I wasn't sure what to expect with this lens, but was looking for one to serve my needs universally. This exceeded my expectations for picture quality and price. I recently took pictures at a friend's wedding and was pleased with the results. The shots I took with this lens on my Nikon D3100 were excellent both indoors and outside.