Sigma 80-400 vs Nikon 80-400
Has anyone compared the Sigma 80-400 OS against the Nikon 80-400 VR, or can anyone point to other people's serious tests or reviews comparing these lenses head-to-head?
I recently had my Nikon 80-400 stolen and hope to be able to buy a replacement soon. I found the Nikon 80-400 to be a great lens, and it is shorter and lighter than the Sigma 80-400. But it's also older technology, and more expensive than the Sigma, and so I'm wondering how the Sigma 80-400 compares.