"It is extremely sharp and is definatly wide enough. This is a true wide angle lens." 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
"Focus is fast, quick... Detail is excellent, even on the edges... This is a must have... You wont be disappointed in this lens..." bhphotovideo.com