Excerpt: Use this lense for daily pictures but I am not very happy with it.First and foremost is the creeping the lense does. One is forced to keep one hand always on the lense to prevent the creeping.even though it has a larger aperture it makes worse pictures than my 75-300mm canon lense.It creates way too much chromatic aberation. The only positive I can say is the range this lense has making changes unneeded.
Excerpt: I loved the idea of one lens that covered the zoom range from 18-270mm.I did not love the fact that I could not get sharp photos from the lens. I tried various settings and focal lengths both handheld and on a tripod ,but was not able to get sharp photos. I was surprised as I have two other Tamron lenses that take very sharp photos. (10-24and 70-300) I returned the lenses for credit to B&H.
Pros: Compact Design
Cons: Extreme Lens Creep, Not Sharp, Poor Clarity, Slow focus in low light
Summary: From the box the zoom was hard to adjust. within the next 30 days had focus and zooming problems. Finally zoom got stuck at about 120 mm. Returned to the shop they played a bit to unstick and froze again. had grinding noise and loose pars inside. Manufactured did not warrant the lens they said I dropped the lense, I said they were wrong. They won. Cost me over 200 Dls to repair.
Pros: Easily Interchangeable
Cons: 30 Day Use Zoom Stuck, Blurry Focus, Hard Zoom, Heavy, Slow Focus
Summary: This will not work with a Canon 5D II. With a full frame camera like this (full 35mm sensor), you get a tunnel effect with the lens. So your photos will be round. You would think they would let you know that type of thing. If you have one of the Canon styles that does not have a full frame sensor, this would perhaps be a good lens.
Excerpt: The advantage of an all in one super zoom like this is being able to use it for wide variety of situations on your DSLR. I have tried 3 different superzooms on my Nikon D5100 (the predecessor of this model the Tamron 18-270mm Di II VC LD, the Sigma 18-250mm Macro OS HSM and this one). Unfortunately the VR on this model makes a noise that is very audible and distracting.
Summary: I bought this lens to use with my Canon T2i. I was quite excited about using it as a general purpose lens that could do wide-angle and telephoto. However, after taking 100 or so pictures with it I found that only a few focused correctly. Most were fuzzy. A few shots were outstanding, but most it seemed to pick the "wrong" place to focus (like a blade of grass 15 feet in front of the soccer player I was trying to capture.
Excerpt: I purchased the lens to do rodeo photography requiring fast action at varied distances in the arena. I found the lens didn't respond quickly to the distances changes and the photos ended up without the clarity that I want to see.