The Sony FE 100-400mm f/4.5-5.6 GM OSS lens had its premiere along with the Sony A9 camera. This superzoom has been designed for sports and nature photographers.
The lens consists of 22 elements placed in 16 groups, including 3 elements made of low-dispersion glass. As would be expected of a professional construction from the G Master series, the lens is equipped with a very fast autofocus which includes 2 Direct Drive SSM servo motors.
1). Sony FE 100-400mm f/4.5-5.6 GM OSS
Considering its parameters, the lens is light (1.39kg) and quite compact. The construction is, of course, fully sealed.
The lens is to appear on sale in July 2017 and it will cost $2500.