I bought this because I wanted a lens in this range and couldn't afford the L lens. I've been thrilled with it. Focus is quick and accurate. Images are sharp and crisp. It's now got about 10,000 shots on it and it's still as responsive and crisp as it was the first day. It actually behaves as I hoped it would.
Pros: Great image quality, fast focus, reasonable price.
Cons: Some CA above about 90mm but it's minor enough that you have to go looking for it, as a rule. I've only noticed it on an item that had black and white checks, and one side of the black checks had small purple fringing. I didn't notice it until I was looking at the image full size on my computer.
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