9 out of 10 points and recommendedsharpness, lightweight, great ISonly built quality.
I am an L lens freak, got almost all of them including 7 primes, etc.reviewed October 26th, 2012 (purchased for $550)
Well in this case dont listen to us L-lens freaks. This is really a hidden gem. The DO version is useless, the L-version is outstanding, for built quality.
This IS USM version however is sharper then both the others, the IS although a bit slower works to perfection.
with optics you normally get what you pay for, not this time, here you get three times the value. Its a real eyeopener.
Only a few weeks back I shot en entire Land-Rover campign with this lens, now that says something.