Summary: Good for the price. At either extreme of zoom there is definite ghosting/shadowing and loss of focus, but this isn't the lens' fault, this type of artifacting is common among large zoom ranges. I can easily see this lens being used for amateur family trips.
Summary: I bought this lens instead of the normal 55mm lens. I am glad that I did this because I could do wide angle as well as far distance. Its mated to a Canon 30D and for all these years, the camera and lens worked perfectly for me.
If you can get a nice one for less than 150.00, do it.
17 November 2012
Summary: Great starter lens for amatuer film photography. I'm using this on a Canon EOS 5/A2 35mm slr. Auto focus is quick, albeit noisy relative to today's latest dslr lenses. Manual focus ring isn't very smooth, but it's more than manageable.