Sigma 17-40mm F1.8 DC | Art: B&H Photo / Amazon / Adorama Apology regarding the supply status of the “Sigma 17-40mm F1.8 DC | Art for Canon RF Mount” Thank you for your patronage of Sigma products. We have received more orders than we expected for the “Sigma 17-40mm F1.8 DC | Art for Canon RF Mount,” which is scheduled to be … Continue reading Sigma 17-40mm F1.8 DC | Art Shortages Announced