Posted by a reviewer on Amazon

My only gripes with it are that it does not have vibration reduction although if your camera has that it definitely will not be a problem and its not really that big of a deal anyway and that the autofocus motor is kind of loud but i really dont care about that either

Posted by a reviewer on Amazon

This is a good lens for the price however dont expect pristine image quality

Posted by a reviewer on Amazon

If you rely heavily on af stay away from this lens

Posted by a reviewer on Amazon

One significant problem with this lens is the zoom drift

Posted by a reviewer on Amazon

Its a quality piece and obviously the company takes its products seriously

Posted by a reviewer on Amazon

Try one before you sink money into an overpriced canon lens and you might find the same thing i did that with canon these days youre paying for the name not the quality

Posted by a reviewer on Amazon

The decision was based on research from various websites and other reviews

Posted by a reviewer on Amazon

I have only used it once and the adaptor that i purchased did not work with this lens and my sony so everything was done manually