SE30-F Focus Gear ~for Sony E mount 30mm f/3.5 Macro mamiya locking in place with a

locking in place with a locking lever

The Nauticam Mini Extension Ring 17 can be used to add 17mm effective length to an N85 Port System

6 GII lens

Nauticam optical-glass dome ports are finely ground to the highest standard of precision and represent the state of the art in both manufacturing and optical technology

This item is non-returnable

SE30-F Focus Gear ~for Sony E mount 30mm f/3.5 Macro mamiya locking in place with aFocus 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 SEL1855 E 18 55mm F3. 5 5. 6 OSS lens.