Summary: Excellent all in one lens going from wide angle to medium zoom. Small and light (though a bit pricey). There is one glaring problem. The image stabilization on/off switch is on the left hand side of the lens right near the area of the turning the zoom grip. I immediately knocked out the switch which looks like a small light switch. I super glued it back into place as well as putting clear tape over the switch to prevent from knocking it out.
I use this lens a lot and am happy with the results.
3 June 2013
Summary: I purchased this lens to use with my Panasonic AF-100 camcorder when I need to "run and gun". The auto focus, though a bit slow in record mode, does work pretty well. Of course, zooming is manual, so I don't use that much when recording. It is convenient to have the 28-280mm range. Image quality is very good for the money spent. I use my Canon primes and zooms on the tripod.
Summary: The range on this lens is great. Solid build with a nice feel that say quality. The downside include size and poor low light performance. I like and don't like the weight. Overall a great buy for $400.