Well, I wish I'd seen this thread earlier. I've had one since I believe 1986, used at that time on my Maxxum 7000 and a couple years later on a 9000, all of which I still have and use. I also use the beercan on a 7D. which I got a few years ago. This lens is quite sharp and has a great bokeh for portraits. I highly recommend it. I discovered one annoyance this summer and I am not sure if it is the camera or the lens , but when zoomed all the way, in bright sunshine with spot metering, it has trouble and over exposes but I think I can put up with it. It's built well and the zoom and focus action is still smooth to this day. I won"t be selling mine.