All our EU readers can get the up to 53% deal at Amazon.de (Click here). Note that in Germany Samyang lenses are sold as Wallimex. Direct link to the discounted lenses:
12mm E-mount Wallimex
7.5mm E-mount Wallimex
8mm E-mount Wallimex
16-300mm A-mount Tamron
8mm A-mount Wallimex
35mm f/1.8 SP A-mount Tamron