Zoom gears allow access to the manual zoom function of a lens in an underwater housing. Use may require specific port extensions and may not be available for all housings and lenses.
This zoom gear is specifically designed for Canon EF 8-15mm f/4L Fisheye USM lenses in underwater housings by Nauticam.
.Zoom Gear for Canon EF 8-15mm f/4L Fisheye USM by Nauticam
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