World-class lens - which one drags you!

I use this lens for a few weeks on a crop camera (50D) and am thrilled with the image quality and processing. Sure, this thing was expensive, but it's worth every penny. Even with the 1.4x Extender are sharpness and color rendering in the complete focal length range optimally. The autofocus works very quietly and reasonably fast, especially if you use the range limit. The weight is enormous, especially if of course when you're working a long time freehand, but the price you have to pay for the best quality well.

I always notice that this lens delivers superb results. I have much less to the pictures edit (contrast, sharpness, etc.), because the quality is already "out of the box" excellent. I do not regret the purchase. On the contrary, I now also invests in the 2.8 / 24-70 L IS USM to the same great results to achieve even with the shorter focal lengths.