I thought these were the same exact lens but with a different brand. The Rokinon is $45.00 cheaper then the Samyang... both from B&H.
http://www.bhphotovideo.com/c/product/769532-REG/Rokinon_FE14M_C_14mm_Ultra_Wide_Angle_f_2_8.html
http://www.bhphotovideo.com/c/product/859167-REG/Samyang_SY14M_C_14mm_f_2_8_Super_Wide.html
Is there actually something different between the two?
http://www.bhphotovideo.com/c/product/769532-REG/Rokinon_FE14M_C_14mm_Ultra_Wide_Angle_f_2_8.html
http://www.bhphotovideo.com/c/product/859167-REG/Samyang_SY14M_C_14mm_f_2_8_Super_Wide.html
Is there actually something different between the two?