"Excellent sharpness and contrast.Solidly built and very smooth focusing." bhphotovideo.com
"This is a fantastic lens! Great versatility, sharpness, focus and ease of use. Fabulous photos!" bhphotovideo.com
"This is my first wide angle zoom and I don't see a reason to purchase another. Color and contrast are great, good edge to edge sharpness. Zoom ring is tight and well dampened." bhphotovideo.com