Excerpt: Nice image quality, not too bulky (for the very useful range). Sure, there are even longer ranges available, but then you really have to start thinking about how big a lens /camera combo you really want to be carrying around.
Pros: Consistent Output, Fast / accurate auto-focus, Lightweight
I don't know what they are smoking but it must be good, pass it to the left
Vince Phan, Amazon
15 October 2015
Summary: Folks, disregard the negative reviews about this lens, I don't know what they are smoking but it must be good, pass it to the left. I'm reviewing this lens on accounts that i've owned the 18-200mm, 18-300mm, 18-70, 18-55, 35mm 1.8, Sigma 10-20mm 55-200mm, Tamron 18-200mm, Tamron 17-55mm 2.8.
Summary: Looses Sharpness at around 70't'mm....returned it twice...thought something was wrong with the first one...returned the first one and ordered a second one only to get the same results....I don't recommend it