Aquatica 48469 Port Extension Ring for Sony FE 16-35mm f/2.8 GM

The 48469 Port Extension Ring accommodates a Sony FE 16-35mm f/2.8 GM lens inside Aquatica underwater camera housings for Sony a7R II, a7S II, a7R III, and a7 III cameras. Equipped with a focus knob and made of 6061 T6 aluminum alloy, the ring goes between the housing and the lens port. The setup requires a separately sold focus gear.