An absolute dream of a lens! Coupled to my Sony A77ii it is giving me the finest results I have ever had in over 60 years of photography, it is an amazing piece of equipment.

I was very excited to receive the lens but was very disappointed, really. I was going to shoot a football game and thought this will be a win. I did not take my canon len with me. Anything in the range of over 100 was not focused. I thought it was me. I tried it with tripod and the issue the same.

Tl;dr: low aberration is a boon, distortion is well controlled, Tamron priced it well The full review: Tamron made this lens to fit well in an area that is kind of empty: mid-range telephoto lenses under $1k, and the features that it offers is excellent.

The Tamron SP designation is reserved for lenses developed with special emphasis on extraordinary photographic performance. Engineers are free to innovate in an uncommon atmosphere where optical performance comes before price, resulting in lenses that satisfy the demands of discerning photographers.