In comparison with the Canon EF 17-40mm f/4L USM lens which it replaced in my collection, the Canon EF 16-35mm f/2.8L II USM is sharper overall with less chromatic aberrations at the edges. But the lens DOES v... read full review
Love: - Sharp wide open and that is what counts (sharpens nicely with software). - Sharpens more when stopped down an f-stop (outstanding resolution). - Fast auto focus (fastest I have se... read full review
Corners are a touch soft at f/2.8. But, the corners sharpen nicely from f/4.0. The The E-73 lens cap is worrisome. It can easily dislodge. One must be careful not to scrape the exposed front element when re... read full review