The new Sigma 50mm f/1.4 DG HSM Art lens shows up at The Photography show in NEC, according to PR, this lens will be released within 2 months. The price of this lens is still not available yet, rumored price will be around $1000.
from PR:
A reader visited The Photography show in NEC, Birmingham and asked when the new Sigma 50mm f/1.4 DG HSM Art lens will be available. The Sigma staff told him that the lens will probably be released in two months.