Release date - 09.06.2021
2 ED aspherical elements 1 DSA lens element, 1 ED lens element, 1 Super HR lens element, 1 HR lens element, 1 HD lens element
Announced: 12.05.2015
2 Aspherical lenses, 4 ED lenses
Announced: 19.04.2017
1 aspherical ED element. 3 aspherical elements, 2 ED elements, 1 UHR element