Zoom Gear for Sony FE 16-35mm F2.8 GM Lens sf-gears Two 1" Balls allow for

Two 1" Balls allow for the attachment of accessories such as arms

Can be used with this lens on X-T4 camera housing only:

to which you can then attach additional accessories

The control buttons now feature 50% stiffer springs

If you want to use the A6000 camera

Zoom Gear for Sony FE 16-35mm F2.8 GM Lens sf-gears Two 1" Balls allow forSubmerge Your Shot Zoom Gear for Sony FE 16 35mm F2. 8 GM Lens For Housings with 90mm Bayonet Polycarbonate Also available on the European website The Zoom Gear for Sony FE 16 35mm F2. 8 GM Lens allows access to manual zoom function in underwater housings. It mounts onto the lens's zoom ring and controls it via the housing's zoom dial. Fits Sea Frogs housings with 90 mount. Compatible with most Sea Frogs dome and flat ports (excluding A6xxx and RX1xx