The Sirui 75mm f/1.8 Anamorphic 1.33X has begun to trickle out to early backers, but it is now available for preorder at B&H Photo. There are also currently discounts for the Sirui 50mm f/1.8 Anamorphic 1.33X and Sirui 24mm f/2.8 Anamorphic 1.33x that vary based on the retailer with B&H Photo offering a mail-in rebate and Amazon offering 5% off.
Sirui 75mm f/1.8 Anamorphic 1.33X:
B&H Photo
Sirui 50mm f/1.8 Anamorphic 1.33X:
B&H Photo Mail-in Rebate
Amazon 5% Off
Sirui 24mm f/2.8 Anamorphic 1.33x:
B&H Photo Mail-in Rebate
Amazon 5% Off