Most helpful critical review
4 of 5 people found the following review helpful
Very sharp but AF not good at all
on 25 March 2013
When I first got this lens I was very happy, in fact the sharpness/contrast/colour from f2.8 onwards was better than I expected. It has a flaw though IMO and IMO is a big one and not something I was prepared to put up with, in that focusing in lower light, not near darkness or anything but just indoors in the daytime light levels, was very slow. I mean it would take several seconds to lock on focus, literally, I counted 3-6 seconds most times when using indoors. For me this was very frustrating for a modern lens, and when for example shooting pictures of your children, this is a long time and your going to miss more shots than you nail. A shame, as that was the only real problem, but if you can't get good accurate speedy focus when shooting, what does it matter about I.Q ? If you were using this in bright light always, and willing to accept this flaw, I'm sure you could get some excellent quality shots, but for me a real deal breaker and I ended up returning and going for the - Sigma 17-50mm f2.8 EX DC HSM - which I kept and I'm very happy with my decision to do so.