What aperture was the Nikon sharper? I'd think the Sigma is sharper at f/1.8.
Not in my case. I tested at 1.4, 1.8, 2.8 & 4. My finding concurs with that of Photozone & Thom Hogan.
I really love the Sigma build & finish, with HSM being faster than Nikon SWM for sure. it's a pity that IQ does not justify keeping it in the end.
Last edited by RX8tasy; 02-21-2013 at 10:22 AM..