Having only used this lens on a couple of occations and only for a short outing, I'm not quite sure about it. Either it's me not used to the focal length or the lens isn't quite as sharp as others I have seen on the Internet. I need to use the lens for a longer period and do some tests with it before deciding if I'll keep it or not. I'm thinking now of the Tamron 18-200 if this doesn't work out for me. Might take me some time to decide this but I'm not really in a rush to do this. I have my beloved Olympus 14-150 which I think is a wonderful lens.