Sigma brought back their Art Sale for the Holiday shopping season and it includes more native Sony glass than ever, but you can also bundle in a MC-11 or buy one on its own to use Canon Sigma glass. There is no advantage to native Sigma glass at this time because they are just Canon lenses with an MC-11 permanently affixed.
Sigma MC-11(Save $100): B&H Photo / Amazon / Adorama
Sigma Art prime lenses:
Sigma 14mm f/1.8 DG HSM Art (Save $100.00): B&H Photo / Amazon
Sigma 20mm f/1.4 DG HSM Art (Save $100.00): B&H Photo / Amazon
Sigma 24mm f/1.4 DG HSM Art (Save $100.00): B&H Photo / Amazon
Sigma 30mm f/1.4 DC HSM Art (Save $50.00): B&H Photo / Amazon
Sigma 35mm f/1.4 DG HSM Art (Save $100.00): B&H Photo / Amazon
Sigma 50mm f/1.4 DG HSM Art (Save $100.00): B&H Photo / Amazon
Sigma 70mm f/2.8 DG Macro Art (Save $50.00): B&H Photo / Amazon
Sigma 85mm F1.4 DG HSM Art (Save $100.00): B&H Photo / Amazon
Sigma 105mm f/1.4 DG HSM Art (Save $100.00): B&H Photo / Amazon
Sigma 135mm F1.8 DG HSM Art (Save $100.00): B&H Photo / Amazon
Sigma Art zooms lenses
Sigma 12-24mm F4 DG HSM Art (Save $100.00): B&H Photo / Amazon
Sigma 18-35mm F1.8 DC HSM Art (Save $100.00): B&H Photo / Amazon
Sigma 24-35mm F2 DG HSM Art (Save $100.00): B&H Photo / Amazon
Sigma 24-105mm F4 DG OS HSM Art (Save $100.00): B&H Photo / Amazon
Sigma 50-100mm F1.8 DC HSM Art (Save $100.00): B&H Photo / Amazon