Have been tempted recently to purchase one of these (used, of course, since it is about 25 years old) and wonder if anyone out there still has one and can offer some first-hand experience. Mostly interested if you can compare it to the current 17-40 or similar-range lenses. This 20-35 lens appeals to me due to its light weight, compact proportions, and f/2.8 constant aperture. And it's available for about $600. FWIW department, our good friend, Ken Rockwell, really likes this one: http://kenrockwell.com/canon/lenses/20-35mm-f28.htm