My initial impressions of the lens were positive. The sharpness was good, and I was finding it harder to look beyond the jpeg compression as it looked to me like the compression was holding the lens back, so I tested it with some RAW images... It's incredibly sharp, incredibly good. The resolution is clearly better than what the 20-35mm can manage. There is no comparison. I am thoroughly amazed. I used the Photoshop conversion to smooth things out a bit, and its still sharp as a tack. Clearly RAW provides advantages over the jpegs, I know there probably aren't many on this list who would debate that, but people have told me as much in the past, so its good to see the advantages RAW can provide if you have an excellent lens. I highly recommend this piece of equipment. I'll post a more complete review with some photo-samples in the near future.
-Shawn
