Photozone/Opticallimits posted their review of Sigma 14mm f/1.8 ART
http://www.opticallimits.com/canon_eos_ff/1025-sigma14f18art?_ga=2.29428159.1225674489.1511278361-458414963.1501483286
http://www.opticallimits.com/canon_eos_ff/1025-sigma14f18art?_ga=2.29428159.1225674489.1511278361-458414963.1501483286