I've wanted to test this lens for some time now. I had the opportunity one sunny but cold day, and it's proven to be a very sharp, contrasty and...quite bulky lens.
To try it out I put it on my trusty Panasonic L1 primarily because I know how it behaves and how to get the best out of it. All I can say is, if you get a chance to purchase this lens (at a reasonable price) buy it. It is simply superb.
The image above is a 2 image stitch which I like very much. Just click on the full image to see exactly what this lens can produce. There's not a lot more to say about this lens except excellent!!