4 out of 10 points and not recommendedlong rangeSoft, dim, CA, distortion.
I bought this lens with my KM5D, thinking it would do everything I wanted. Upon close examination of the results, I found that everything it did, it did poorly.reviewed August 18th, 2008 (purchased for $500)
I have since replaced it will mulitple lenses, each with less ambitious zoom ranges, and get much better results.
Zoom lenses are compromises, and superzoom lenses are supercompromises. This is a "jack of all trades and master of none" lens, and that wasn't enough for me.