The new Sigma 105mm f/1.4 DG HSM Art lens is now available for pre-order for $1,599 (£1,500/€1,499) at:
Shipping will begin in late June and its available in Nikon, Canon, Sigma and Sony E mounts. The full press release can be found here. Additional information on the latest Sigma 105mm lens can be found here. Sample photos are available here.