Sony SEL1635GM FE 16-35mm F2.8 GM Lens - Professional Wide-Angle Zoom Lens for Sony E-Mount Cameras - Ideal for Landscape, Architecture & Travel Photography

Focus gears allow access to the mechanical zoom function of many lenses. Use of these gears may require specific port extensions and may not be available for all housings and lenses.

This focus gear is specific for the Sony SEL1635GM FE 16-35mm F2.8 GM lens.