Sigma 10-20mm f3.5 EX DC HSM for $399 [C/N/A/P/Si]

APS-C shooters, unite and take over! The new condition Sigma 10-20mm f3.5 EX DC HSM is on sale for $399 with 4% promotional rewards (around $16 to be spent in future purchases) at B&H Photo in the Canon, Nikon, Sony A, Pentax and Sigma SLR systems until 8/31/17 at 11:59pm ET.

Or if you prefer lens-y accessories instead of 4% promotional rewards, you can get it for the same price at Adorama.