Tested in the store. I wanted to change my Tamron 15-30 2.8 to this Sigma. I wore it on 1D Mark 3, on crop 1.3 with an open aperture it gives a strong vignette at 18-24, at 35 it is no longer visible. Sharpness pleased. There is a known compatibility problem with the new Canon 70d carcasses and others, but for some reason people scold Sigma, not Canon. I will take for 40d. Tamron is too big and heavy.
📷 Nikon AF-S NIKKOR 50mm f/1.4G Lens with Auto Focus: Perfect for Nikon DSLR Cameras
76 Review
Black Canon EF 24-105mm f/4L IS II USM Lens - Model 1380C002
78 Review
Nikon 50mm f/1.8D Lens: Perfect for Nikon DSLR Cameras!
97 Review
Nikon 35mm f/1.8G Auto Focus Lens for Nikon DSLR Cameras - Black (Model 2183)
125 Review