10 out of 10 points and recommendedLight weight, valued usage with L qualitynothing
Not only this lens but all L lens has been made good as against dust and wet. I had no problem at all with Canon lens at my long experience. So I'd like to say this lens is not "Dust Trombone" at my usage least.reviewed June 14th, 2006 (purchased for $1,600)
I could take good picture in better quality by this lens more than FD 300mm f2.8 L with FD-EOS adapter. So I lost the mean to carry that big heavy lens. In the digital era, we are hitting turning point. At my opinion with experience, modern designed lenses in zoom are better than old designed single focus lenses. We can see it not only MTF graph but also on our pictures.