Excerpt: ok i have a nikon D7000 i use the back button focus well when i use this lens when i hit the back button to bring in to focus the V.C would not kick in so i had to ease down the shutter button to break the plan to make the V.C work and then push the shutter button down to take the photo it was...
Excerpt: i use this product for sports and some closeup nature shots. i use it with a canon t3i. the zoom is really awesome but with the extreme zoom comes an aperture thats not constant, meaning the aperture will get small as it zooms in more. so the lens is not that fast with a fastest at f4.
Pros: Durable, Easily Interchangeable, Fast / accurate auto-focus, Rugged, Zoom Range
Cons: Heavy, Non-Constant Aperture, Poor in Low Light
Excerpt: This Tamrom lens is really a good option.Inspite some minor issues, the image quality and the price you pay for it makes this lens one of the best options on the market.What minor issues?? The image stabilizer button is somewhat protruding, and accidentally can be changed without you notice it.
Pros: Consistent Output, Fast / accurate auto-focus, Price
Excerpt: First off I've owned a canon telephoto lens with IS and a Sigma 70-300 non image stabilized. The Tamron far exceeds either of those lenses. The auto focus is quick and accurate most of the time.
Excerpt: I use this lens private and professional. I is my only non-Canon lens (I did use to own Sigma's). I own a Canon 17-40L, Canon 24-105L, Canon 50mm 1.4, Canon 20mm 2.8, Canon 135mm 2.8, so I have a lot to compare it with. The Tamron is cheaper and longer than the Canon 70-200L f4.0. And it has IS.
Pros: Consistent Output, Fast / accurate auto-focus, Lightweight
Excerpt: I bought the lens primarily for wildlife photography. The lens gets five stars on almost everything the counts, picture quality, speed to focus, weight and vibration control (VC). The only reason I dropped a star is because it really struggles to autofocus with my Kenko 2x extender.
Pros: Easily Interchangeable, Fast / accurate auto-focus, Lightweight, Nice Bokeh, Strong Construction
Excerpt: AF is quick and quiet. The lens has great optically quality and is sharp all the way to 200mm and a bit softer up to 300mm, but still usable. VC works great at stabilizing stationary subjects. Comes with lens hood. Metal lens mount. VC jerks when trying to follow moving subjects.