Image quality, vignetting, flare and distortion test results along with specs, measurements, standard product images and eye candy have been added to the Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary Lens page.
Completing the review of this lens is one of my priorities right now.
The Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary Lens is in stock at B&H | Amazon | Adorama.