The Sirui 24mm f/2.8 is an impressive lens, and the current $400 discount is the largest discount that we have seen for this Sirui lens. Amazon has had the entire lineup of Sirui lenses discounted all month, but the current promotion at B&H Photo goes above and beyond. The Godox TT 685F II is also currently on sale at B&H Photo too.
Sirui 24mm F2.8 Anamorphic 1.33X (20% Off):
Amazon / Adorama / B&H Photo
Sirui 50mm F1.8 Anamorphic 1.33X (30% Off):
Amazon / Adorama / B&H Photo
Sirui 75mm F1.8 Anamorphic 1.33X (28% Off):
Amazon / Adorama / B&H Photo